/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.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:11:26,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:11:26,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:11:26,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:11:26,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:11:26,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:11:26,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:11:26,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:11:26,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:11:26,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:11:26,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:11:26,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:11:26,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:11:26,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:11:26,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:11:26,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:11:26,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:11:26,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:11:26,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:11:26,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:11:26,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:11:26,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:11:26,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:11:26,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:11:26,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 20:11:26,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 20:11:26,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 20:11:26,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 20:11:26,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 20:11:26,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 20:11:26,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 20:11:26,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 20:11:26,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 20:11:26,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 20:11:26,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 20:11:26,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 20:11:26,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 20:11:26,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 20:11:26,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:11:26,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:11:26,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:11:26,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 20:11:26,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:11:26,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:11:26,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:11:26,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 20:11:26,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:11:26,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 20:11:26,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:11:26,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:11:26,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:11:26,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:11:26,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 20:11:26,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:11:26,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:11:26,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:11:26,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:11:26,136 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:11:26,137 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:11:26,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:11:26,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:11:26,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:11:26,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:11:26,317 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:11:26,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-02-23 20:11:26,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0388831a/cc5c212d651e47fdbbe40e1817c22a3f/FLAG8ff7b46fc [2022-02-23 20:11:26,745 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:11:26,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-02-23 20:11:26,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0388831a/cc5c212d651e47fdbbe40e1817c22a3f/FLAG8ff7b46fc [2022-02-23 20:11:27,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0388831a/cc5c212d651e47fdbbe40e1817c22a3f [2022-02-23 20:11:27,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:11:27,096 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:11:27,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:11:27,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:11:27,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:11:27,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f19c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27, skipping insertion in model container [2022-02-23 20:11:27,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:11:27,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:11:27,489 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.14.i.cil-1.c[76536,76549] [2022-02-23 20:11:27,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:11:27,511 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:11:27,570 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.14.i.cil-1.c[76536,76549] [2022-02-23 20:11:27,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:11:27,588 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:11:27,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27 WrapperNode [2022-02-23 20:11:27,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:11:27,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:11:27,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:11:27,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:11:27,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:11:27,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:11:27,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:11:27,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:11:27,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (1/1) ... [2022-02-23 20:11:27,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:11:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:11:27,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-23 20:11:27,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 20:11:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 20:11:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 20:11:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 20:11:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 20:11:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:11:27,868 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:11:27,869 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:11:28,498 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 20:11:28,948 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 20:11:28,948 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 20:11:28,957 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:11:28,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:11:28,965 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:11:28,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:11:28 BoogieIcfgContainer [2022-02-23 20:11:28,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:11:28,967 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:11:28,967 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:11:28,968 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:11:28,970 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:11:28" (1/1) ... [2022-02-23 20:11:29,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:11:29 BasicIcfg [2022-02-23 20:11:29,014 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:11:29,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:11:29,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:11:29,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:11:29,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:11:27" (1/4) ... [2022-02-23 20:11:29,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88c6e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:11:29, skipping insertion in model container [2022-02-23 20:11:29,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:27" (2/4) ... [2022-02-23 20:11:29,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88c6e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:11:29, skipping insertion in model container [2022-02-23 20:11:29,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:11:28" (3/4) ... [2022-02-23 20:11:29,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88c6e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:11:29, skipping insertion in model container [2022-02-23 20:11:29,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:11:29" (4/4) ... [2022-02-23 20:11:29,026 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cJordan [2022-02-23 20:11:29,030 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:11:29,030 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:11:29,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:11:29,076 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-23 20:11:29,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:11:29,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-23 20:11:29,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 20:11:29,108 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:29,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:29,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:29,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-02-23 20:11:29,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:29,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048506178] [2022-02-23 20:11:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:29,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:29,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:29,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048506178] [2022-02-23 20:11:29,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048506178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:29,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:29,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:29,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627822396] [2022-02-23 20:11:29,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:29,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:29,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:29,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:29,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:29,648 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:31,345 INFO L93 Difference]: Finished difference Result 299 states and 501 transitions. [2022-02-23 20:11:31,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:31,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-23 20:11:31,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:31,354 INFO L225 Difference]: With dead ends: 299 [2022-02-23 20:11:31,355 INFO L226 Difference]: Without dead ends: 273 [2022-02-23 20:11:31,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:11:31,361 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 166 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:31,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 499 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-23 20:11:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-23 20:11:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 188. [2022-02-23 20:11:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.6174863387978142) internal successors, (296), 183 states have internal predecessors, (296), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 300 transitions. [2022-02-23 20:11:31,412 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 300 transitions. Word has length 50 [2022-02-23 20:11:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:31,412 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 300 transitions. [2022-02-23 20:11:31,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2022-02-23 20:11:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-23 20:11:31,414 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:31,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:31,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:11:31,414 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 346272675, now seen corresponding path program 1 times [2022-02-23 20:11:31,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:31,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124570851] [2022-02-23 20:11:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:31,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:31,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:31,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:31,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124570851] [2022-02-23 20:11:31,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124570851] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:31,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:31,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:31,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955511477] [2022-02-23 20:11:31,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:31,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:31,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:31,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:31,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:31,532 INFO L87 Difference]: Start difference. First operand 188 states and 300 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:33,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:35,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:36,367 INFO L93 Difference]: Finished difference Result 216 states and 340 transitions. [2022-02-23 20:11:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:36,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-02-23 20:11:36,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:36,369 INFO L225 Difference]: With dead ends: 216 [2022-02-23 20:11:36,369 INFO L226 Difference]: Without dead ends: 216 [2022-02-23 20:11:36,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:11:36,370 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 22 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:36,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 517 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-23 20:11:36,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-02-23 20:11:36,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-02-23 20:11:36,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6237113402061856) internal successors, (315), 194 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 319 transitions. [2022-02-23 20:11:36,376 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 319 transitions. Word has length 51 [2022-02-23 20:11:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:36,376 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 319 transitions. [2022-02-23 20:11:36,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:36,376 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 319 transitions. [2022-02-23 20:11:36,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:11:36,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:36,378 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:36,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:11:36,378 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:36,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:36,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1001940347, now seen corresponding path program 1 times [2022-02-23 20:11:36,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:36,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301727692] [2022-02-23 20:11:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:36,495 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:36,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:36,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301727692] [2022-02-23 20:11:36,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301727692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:36,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:36,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:36,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324409914] [2022-02-23 20:11:36,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:36,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:36,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:36,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:36,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:36,497 INFO L87 Difference]: Start difference. First operand 199 states and 319 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:38,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:39,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:39,983 INFO L93 Difference]: Finished difference Result 216 states and 339 transitions. [2022-02-23 20:11:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:39,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-02-23 20:11:39,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:39,985 INFO L225 Difference]: With dead ends: 216 [2022-02-23 20:11:39,985 INFO L226 Difference]: Without dead ends: 216 [2022-02-23 20:11:39,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:11:39,986 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 24 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:39,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 519 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-02-23 20:11:39,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-02-23 20:11:39,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-02-23 20:11:39,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 194 states have internal predecessors, (314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:39,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2022-02-23 20:11:39,991 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 64 [2022-02-23 20:11:39,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:39,992 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2022-02-23 20:11:39,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:39,992 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2022-02-23 20:11:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:11:39,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:39,993 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:39,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 20:11:39,993 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:39,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash -853695767, now seen corresponding path program 1 times [2022-02-23 20:11:39,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:39,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521649565] [2022-02-23 20:11:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:39,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:40,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:40,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:40,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521649565] [2022-02-23 20:11:40,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521649565] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:40,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:40,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:40,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721787345] [2022-02-23 20:11:40,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:40,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:40,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:40,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:40,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:40,136 INFO L87 Difference]: Start difference. First operand 199 states and 318 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:42,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:44,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:46,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:46,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:46,736 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-02-23 20:11:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:11:46,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:46,737 INFO L225 Difference]: With dead ends: 215 [2022-02-23 20:11:46,737 INFO L226 Difference]: Without dead ends: 215 [2022-02-23 20:11:46,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:11:46,738 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:46,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:11:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-02-23 20:11:46,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2022-02-23 20:11:46,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-02-23 20:11:46,743 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 65 [2022-02-23 20:11:46,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:46,743 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-02-23 20:11:46,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:46,744 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-02-23 20:11:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:11:46,745 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:46,745 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:46,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 20:11:46,745 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:46,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 108125897, now seen corresponding path program 1 times [2022-02-23 20:11:46,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:46,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723958906] [2022-02-23 20:11:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:46,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:46,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:46,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:46,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:46,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723958906] [2022-02-23 20:11:46,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723958906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:46,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:46,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:46,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184340571] [2022-02-23 20:11:46,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:46,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:46,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:46,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:46,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:46,886 INFO L87 Difference]: Start difference. First operand 199 states and 317 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:50,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:50,966 INFO L93 Difference]: Finished difference Result 323 states and 510 transitions. [2022-02-23 20:11:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:50,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:11:50,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:50,968 INFO L225 Difference]: With dead ends: 323 [2022-02-23 20:11:50,968 INFO L226 Difference]: Without dead ends: 323 [2022-02-23 20:11:50,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:11:50,969 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 161 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:50,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 380 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:11:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-02-23 20:11:50,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 211. [2022-02-23 20:11:50,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 206 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:50,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 333 transitions. [2022-02-23 20:11:50,974 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 333 transitions. Word has length 65 [2022-02-23 20:11:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:50,974 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 333 transitions. [2022-02-23 20:11:50,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:50,974 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 333 transitions. [2022-02-23 20:11:50,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:11:50,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:50,975 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:50,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 20:11:50,975 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:50,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash -236581015, now seen corresponding path program 1 times [2022-02-23 20:11:50,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:50,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657481623] [2022-02-23 20:11:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:51,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:51,097 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:51,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657481623] [2022-02-23 20:11:51,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657481623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:51,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:51,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:51,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364059284] [2022-02-23 20:11:51,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:51,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:51,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:51,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:51,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:51,100 INFO L87 Difference]: Start difference. First operand 211 states and 333 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:53,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:55,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:56,198 INFO L93 Difference]: Finished difference Result 322 states and 506 transitions. [2022-02-23 20:11:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:56,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:11:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:56,200 INFO L225 Difference]: With dead ends: 322 [2022-02-23 20:11:56,200 INFO L226 Difference]: Without dead ends: 322 [2022-02-23 20:11:56,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:11:56,201 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:56,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:11:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-02-23 20:11:56,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-02-23 20:11:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5943396226415094) internal successors, (338), 212 states have internal predecessors, (338), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:56,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 342 transitions. [2022-02-23 20:11:56,205 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 342 transitions. Word has length 65 [2022-02-23 20:11:56,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:56,205 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 342 transitions. [2022-02-23 20:11:56,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:56,206 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 342 transitions. [2022-02-23 20:11:56,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:11:56,206 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:56,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:11:56,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 20:11:56,206 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:56,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:56,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1695836809, now seen corresponding path program 1 times [2022-02-23 20:11:56,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:56,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784251848] [2022-02-23 20:11:56,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:56,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:56,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:56,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784251848] [2022-02-23 20:11:56,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784251848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:56,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:56,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:56,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207076163] [2022-02-23 20:11:56,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:56,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:56,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:56,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:56,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:56,302 INFO L87 Difference]: Start difference. First operand 217 states and 342 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:58,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:00,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:02,304 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:02,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:02,623 INFO L93 Difference]: Finished difference Result 230 states and 358 transitions. [2022-02-23 20:12:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:02,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-02-23 20:12:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:02,625 INFO L225 Difference]: With dead ends: 230 [2022-02-23 20:12:02,625 INFO L226 Difference]: Without dead ends: 230 [2022-02-23 20:12:02,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:02,625 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:02,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-23 20:12:02,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-23 20:12:02,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-02-23 20:12:02,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5896226415094339) internal successors, (337), 212 states have internal predecessors, (337), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 341 transitions. [2022-02-23 20:12:02,630 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 341 transitions. Word has length 65 [2022-02-23 20:12:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:02,630 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 341 transitions. [2022-02-23 20:12:02,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 341 transitions. [2022-02-23 20:12:02,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 20:12:02,630 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:02,631 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:02,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 20:12:02,631 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:02,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:02,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1137620101, now seen corresponding path program 1 times [2022-02-23 20:12:02,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:02,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674157211] [2022-02-23 20:12:02,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:02,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:02,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:02,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674157211] [2022-02-23 20:12:02,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674157211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:02,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:02,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:02,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563340544] [2022-02-23 20:12:02,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:02,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:02,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:02,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:02,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:02,716 INFO L87 Difference]: Start difference. First operand 217 states and 341 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:04,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:06,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:08,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:10,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:10,529 INFO L93 Difference]: Finished difference Result 322 states and 502 transitions. [2022-02-23 20:12:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:10,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-02-23 20:12:10,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:10,531 INFO L225 Difference]: With dead ends: 322 [2022-02-23 20:12:10,531 INFO L226 Difference]: Without dead ends: 322 [2022-02-23 20:12:10,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:10,531 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 158 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:10,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-02-23 20:12:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-02-23 20:12:10,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-02-23 20:12:10,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5754716981132075) internal successors, (334), 212 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 338 transitions. [2022-02-23 20:12:10,535 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 338 transitions. Word has length 66 [2022-02-23 20:12:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:10,536 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 338 transitions. [2022-02-23 20:12:10,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 338 transitions. [2022-02-23 20:12:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:12:10,536 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:10,536 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:10,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 20:12:10,537 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:10,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:10,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1724441147, now seen corresponding path program 1 times [2022-02-23 20:12:10,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:10,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577818876] [2022-02-23 20:12:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:10,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:10,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:10,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577818876] [2022-02-23 20:12:10,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577818876] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:10,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:10,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:10,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838880585] [2022-02-23 20:12:10,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:10,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:10,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:10,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:10,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:10,645 INFO L87 Difference]: Start difference. First operand 217 states and 338 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:11,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:13,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:15,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:16,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:16,528 INFO L93 Difference]: Finished difference Result 230 states and 354 transitions. [2022-02-23 20:12:16,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:16,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-02-23 20:12:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:16,529 INFO L225 Difference]: With dead ends: 230 [2022-02-23 20:12:16,529 INFO L226 Difference]: Without dead ends: 230 [2022-02-23 20:12:16,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:16,530 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:16,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-02-23 20:12:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-02-23 20:12:16,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-02-23 20:12:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.570754716981132) internal successors, (333), 212 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 337 transitions. [2022-02-23 20:12:16,534 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 337 transitions. Word has length 67 [2022-02-23 20:12:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:16,534 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 337 transitions. [2022-02-23 20:12:16,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 337 transitions. [2022-02-23 20:12:16,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:12:16,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:16,534 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:16,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 20:12:16,535 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:16,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1640250846, now seen corresponding path program 1 times [2022-02-23 20:12:16,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:16,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549882579] [2022-02-23 20:12:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:16,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:16,618 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:16,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:16,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549882579] [2022-02-23 20:12:16,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549882579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:16,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:16,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:16,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130465017] [2022-02-23 20:12:16,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:16,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:16,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:16,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:16,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:16,619 INFO L87 Difference]: Start difference. First operand 217 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:18,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:18,442 INFO L93 Difference]: Finished difference Result 220 states and 340 transitions. [2022-02-23 20:12:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:18,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-23 20:12:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:18,448 INFO L225 Difference]: With dead ends: 220 [2022-02-23 20:12:18,448 INFO L226 Difference]: Without dead ends: 220 [2022-02-23 20:12:18,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:18,449 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:18,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 20:12:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-02-23 20:12:18,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-02-23 20:12:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5660377358490567) internal successors, (332), 212 states have internal predecessors, (332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 336 transitions. [2022-02-23 20:12:18,453 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 336 transitions. Word has length 68 [2022-02-23 20:12:18,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:18,453 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 336 transitions. [2022-02-23 20:12:18,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 336 transitions. [2022-02-23 20:12:18,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-23 20:12:18,454 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:18,454 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:18,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 20:12:18,454 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-02-23 20:12:18,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:18,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436622445] [2022-02-23 20:12:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:18,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:18,570 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:18,570 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436622445] [2022-02-23 20:12:18,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436622445] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:18,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:18,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:18,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856132004] [2022-02-23 20:12:18,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:18,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:18,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:18,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:18,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:18,571 INFO L87 Difference]: Start difference. First operand 217 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:20,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:22,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:23,213 INFO L93 Difference]: Finished difference Result 322 states and 499 transitions. [2022-02-23 20:12:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:23,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-02-23 20:12:23,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:23,215 INFO L225 Difference]: With dead ends: 322 [2022-02-23 20:12:23,215 INFO L226 Difference]: Without dead ends: 322 [2022-02-23 20:12:23,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:23,216 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:23,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:12:23,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-02-23 20:12:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 239. [2022-02-23 20:12:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.6025641025641026) internal successors, (375), 234 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:23,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 379 transitions. [2022-02-23 20:12:23,221 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 379 transitions. Word has length 68 [2022-02-23 20:12:23,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:23,221 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 379 transitions. [2022-02-23 20:12:23,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 379 transitions. [2022-02-23 20:12:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-23 20:12:23,222 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:23,222 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:23,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 20:12:23,222 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:23,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-02-23 20:12:23,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:23,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408445687] [2022-02-23 20:12:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:23,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-23 20:12:23,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:23,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408445687] [2022-02-23 20:12:23,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408445687] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:23,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:23,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:23,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292039705] [2022-02-23 20:12:23,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:23,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:23,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:23,324 INFO L87 Difference]: Start difference. First operand 239 states and 379 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:24,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:25,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:25,860 INFO L93 Difference]: Finished difference Result 281 states and 440 transitions. [2022-02-23 20:12:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:25,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-02-23 20:12:25,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:25,862 INFO L225 Difference]: With dead ends: 281 [2022-02-23 20:12:25,862 INFO L226 Difference]: Without dead ends: 281 [2022-02-23 20:12:25,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:25,863 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:25,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:12:25,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-02-23 20:12:25,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2022-02-23 20:12:25,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-02-23 20:12:25,867 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 96 [2022-02-23 20:12:25,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:25,867 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-02-23 20:12:25,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-02-23 20:12:25,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-23 20:12:25,868 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:25,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:25,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 20:12:25,868 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:25,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:25,868 INFO L85 PathProgramCache]: Analyzing trace with hash 818702560, now seen corresponding path program 1 times [2022-02-23 20:12:25,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:25,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141908775] [2022-02-23 20:12:25,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:25,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:26,012 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:12:26,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:26,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141908775] [2022-02-23 20:12:26,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141908775] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:26,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:26,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:26,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946671463] [2022-02-23 20:12:26,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:26,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:26,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:26,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:26,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:26,013 INFO L87 Difference]: Start difference. First operand 261 states and 414 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:29,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:31,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:31,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:31,727 INFO L93 Difference]: Finished difference Result 384 states and 601 transitions. [2022-02-23 20:12:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:31,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-02-23 20:12:31,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:31,728 INFO L225 Difference]: With dead ends: 384 [2022-02-23 20:12:31,728 INFO L226 Difference]: Without dead ends: 384 [2022-02-23 20:12:31,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:31,729 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 154 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:31,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 640 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 619 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-23 20:12:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-02-23 20:12:31,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 277. [2022-02-23 20:12:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.588235294117647) internal successors, (432), 272 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 436 transitions. [2022-02-23 20:12:31,733 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 436 transitions. Word has length 109 [2022-02-23 20:12:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:31,733 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 436 transitions. [2022-02-23 20:12:31,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 436 transitions. [2022-02-23 20:12:31,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-23 20:12:31,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:31,734 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:31,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 20:12:31,735 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:31,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:31,738 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-02-23 20:12:31,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:31,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898298836] [2022-02-23 20:12:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:31,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:31,826 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-23 20:12:31,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:31,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898298836] [2022-02-23 20:12:31,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898298836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:31,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:31,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:31,827 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831167403] [2022-02-23 20:12:31,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:31,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:31,827 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:31,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:31,828 INFO L87 Difference]: Start difference. First operand 277 states and 436 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:34,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:35,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:35,752 INFO L93 Difference]: Finished difference Result 290 states and 451 transitions. [2022-02-23 20:12:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:35,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-23 20:12:35,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:35,754 INFO L225 Difference]: With dead ends: 290 [2022-02-23 20:12:35,754 INFO L226 Difference]: Without dead ends: 290 [2022-02-23 20:12:35,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:35,755 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 20 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:35,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 610 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:12:35,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-02-23 20:12:35,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-02-23 20:12:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 272 states have internal predecessors, (431), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 435 transitions. [2022-02-23 20:12:35,759 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 435 transitions. Word has length 110 [2022-02-23 20:12:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:35,759 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 435 transitions. [2022-02-23 20:12:35,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 435 transitions. [2022-02-23 20:12:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-23 20:12:35,760 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:35,760 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:35,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 20:12:35,760 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:35,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:35,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-02-23 20:12:35,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:35,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183178796] [2022-02-23 20:12:35,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:35,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:35,875 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:12:35,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:35,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183178796] [2022-02-23 20:12:35,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183178796] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:35,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:35,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:35,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467556385] [2022-02-23 20:12:35,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:35,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:35,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:35,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:35,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:35,876 INFO L87 Difference]: Start difference. First operand 277 states and 435 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:38,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:40,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:41,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:42,385 INFO L93 Difference]: Finished difference Result 360 states and 552 transitions. [2022-02-23 20:12:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-02-23 20:12:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:42,386 INFO L225 Difference]: With dead ends: 360 [2022-02-23 20:12:42,386 INFO L226 Difference]: Without dead ends: 360 [2022-02-23 20:12:42,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:42,387 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 153 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:42,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 497 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:12:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-23 20:12:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 277. [2022-02-23 20:12:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5735294117647058) internal successors, (428), 272 states have internal predecessors, (428), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:42,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 432 transitions. [2022-02-23 20:12:42,391 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 432 transitions. Word has length 110 [2022-02-23 20:12:42,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:42,392 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 432 transitions. [2022-02-23 20:12:42,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 432 transitions. [2022-02-23 20:12:42,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-02-23 20:12:42,392 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:42,393 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:42,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 20:12:42,393 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-02-23 20:12:42,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:42,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368528930] [2022-02-23 20:12:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:42,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-23 20:12:42,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:42,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368528930] [2022-02-23 20:12:42,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368528930] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:42,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:42,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:12:42,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007154803] [2022-02-23 20:12:42,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:42,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:12:42,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:42,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:12:42,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:42,494 INFO L87 Difference]: Start difference. First operand 277 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:43,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:47,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:48,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:48,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:48,866 INFO L93 Difference]: Finished difference Result 286 states and 443 transitions. [2022-02-23 20:12:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 20:12:48,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-02-23 20:12:48,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:48,871 INFO L225 Difference]: With dead ends: 286 [2022-02-23 20:12:48,872 INFO L226 Difference]: Without dead ends: 286 [2022-02-23 20:12:48,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 20:12:48,872 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:48,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-23 20:12:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-02-23 20:12:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-02-23 20:12:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5622775800711743) internal successors, (439), 281 states have internal predecessors, (439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:48,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 443 transitions. [2022-02-23 20:12:48,876 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 443 transitions. Word has length 111 [2022-02-23 20:12:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:48,876 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 443 transitions. [2022-02-23 20:12:48,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:48,876 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 443 transitions. [2022-02-23 20:12:48,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-23 20:12:48,877 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:48,877 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:48,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 20:12:48,877 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:48,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:48,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1550147049, now seen corresponding path program 1 times [2022-02-23 20:12:48,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:48,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966374694] [2022-02-23 20:12:48,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:48,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:48,980 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:12:48,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:48,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966374694] [2022-02-23 20:12:48,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966374694] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:48,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:48,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:48,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916805760] [2022-02-23 20:12:48,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:48,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:48,981 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:48,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:48,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:48,981 INFO L87 Difference]: Start difference. First operand 286 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:51,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:51,784 INFO L93 Difference]: Finished difference Result 313 states and 477 transitions. [2022-02-23 20:12:51,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:51,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-02-23 20:12:51,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:51,785 INFO L225 Difference]: With dead ends: 313 [2022-02-23 20:12:51,785 INFO L226 Difference]: Without dead ends: 313 [2022-02-23 20:12:51,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:51,786 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 36 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:51,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-23 20:12:51,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-02-23 20:12:51,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-02-23 20:12:51,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5587188612099645) internal successors, (438), 281 states have internal predecessors, (438), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 442 transitions. [2022-02-23 20:12:51,789 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 442 transitions. Word has length 113 [2022-02-23 20:12:51,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:51,790 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 442 transitions. [2022-02-23 20:12:51,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:51,790 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 442 transitions. [2022-02-23 20:12:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-23 20:12:51,790 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:51,791 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:51,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 20:12:51,791 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:51,791 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-02-23 20:12:51,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:51,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218864460] [2022-02-23 20:12:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:51,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:51,892 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:12:51,893 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:51,893 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218864460] [2022-02-23 20:12:51,893 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218864460] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:51,893 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:51,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:51,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106335334] [2022-02-23 20:12:51,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:51,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:51,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:51,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:51,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:51,894 INFO L87 Difference]: Start difference. First operand 286 states and 442 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:53,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:54,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:54,732 INFO L93 Difference]: Finished difference Result 378 states and 569 transitions. [2022-02-23 20:12:54,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-23 20:12:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:54,734 INFO L225 Difference]: With dead ends: 378 [2022-02-23 20:12:54,734 INFO L226 Difference]: Without dead ends: 378 [2022-02-23 20:12:54,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:54,734 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 154 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:54,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-02-23 20:12:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-02-23 20:12:54,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2022-02-23 20:12:54,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5444839857651245) internal successors, (434), 281 states have internal predecessors, (434), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:54,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 438 transitions. [2022-02-23 20:12:54,738 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 438 transitions. Word has length 114 [2022-02-23 20:12:54,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:54,738 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 438 transitions. [2022-02-23 20:12:54,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:54,739 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 438 transitions. [2022-02-23 20:12:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-02-23 20:12:54,739 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:54,739 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:54,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 20:12:54,740 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:54,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-02-23 20:12:54,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:54,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647868803] [2022-02-23 20:12:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:54,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:12:54,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:54,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647868803] [2022-02-23 20:12:54,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647868803] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:54,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:54,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:54,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201285186] [2022-02-23 20:12:54,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:54,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:54,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:54,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:54,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:54,838 INFO L87 Difference]: Start difference. First operand 286 states and 438 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:57,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:58,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:59,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:59,524 INFO L93 Difference]: Finished difference Result 454 states and 697 transitions. [2022-02-23 20:12:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:59,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-02-23 20:12:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:59,526 INFO L225 Difference]: With dead ends: 454 [2022-02-23 20:12:59,526 INFO L226 Difference]: Without dead ends: 454 [2022-02-23 20:12:59,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:59,529 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 135 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:59,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-23 20:12:59,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-02-23 20:12:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 350. [2022-02-23 20:12:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5594202898550724) internal successors, (538), 345 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) [2022-02-23 20:12:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 542 transitions. [2022-02-23 20:12:59,537 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 542 transitions. Word has length 118 [2022-02-23 20:12:59,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:59,537 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 542 transitions. [2022-02-23 20:12:59,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 542 transitions. [2022-02-23 20:12:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-23 20:12:59,538 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:59,538 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:59,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 20:12:59,538 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:59,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:59,539 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-02-23 20:12:59,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:59,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424829623] [2022-02-23 20:12:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:59,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:59,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-23 20:12:59,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:59,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424829623] [2022-02-23 20:12:59,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424829623] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:59,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:59,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:59,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087613632] [2022-02-23 20:12:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:59,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:59,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:59,645 INFO L87 Difference]: Start difference. First operand 350 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) [2022-02-23 20:13:01,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:03,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:03,212 INFO L93 Difference]: Finished difference Result 357 states and 551 transitions. [2022-02-23 20:13:03,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:03,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-23 20:13:03,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:03,214 INFO L225 Difference]: With dead ends: 357 [2022-02-23 20:13:03,214 INFO L226 Difference]: Without dead ends: 357 [2022-02-23 20:13:03,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:03,214 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:03,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 561 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:13:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-02-23 20:13:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 350. [2022-02-23 20:13:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5565217391304347) internal successors, (537), 345 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 541 transitions. [2022-02-23 20:13:03,218 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 541 transitions. Word has length 123 [2022-02-23 20:13:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:03,219 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 541 transitions. [2022-02-23 20:13:03,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 541 transitions. [2022-02-23 20:13:03,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-23 20:13:03,219 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:03,220 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:03,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 20:13:03,220 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:03,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:03,220 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-02-23 20:13:03,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:03,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471467069] [2022-02-23 20:13:03,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:03,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:03,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:03,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:03,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471467069] [2022-02-23 20:13:03,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471467069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:03,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:03,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:03,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76260974] [2022-02-23 20:13:03,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:03,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:03,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:03,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:03,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:03,351 INFO L87 Difference]: Start difference. First operand 350 states and 541 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:06,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:07,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:07,645 INFO L93 Difference]: Finished difference Result 482 states and 736 transitions. [2022-02-23 20:13:07,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:07,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-23 20:13:07,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:07,647 INFO L225 Difference]: With dead ends: 482 [2022-02-23 20:13:07,647 INFO L226 Difference]: Without dead ends: 482 [2022-02-23 20:13:07,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:07,647 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 131 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:07,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 380 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-23 20:13:07,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-02-23 20:13:07,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 387. [2022-02-23 20:13:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5628272251308901) internal successors, (597), 382 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 601 transitions. [2022-02-23 20:13:07,652 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 601 transitions. Word has length 124 [2022-02-23 20:13:07,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:07,652 INFO L470 AbstractCegarLoop]: Abstraction has 387 states and 601 transitions. [2022-02-23 20:13:07,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:07,653 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 601 transitions. [2022-02-23 20:13:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-23 20:13:07,653 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:07,653 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:07,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 20:13:07,654 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:07,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:07,654 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-02-23 20:13:07,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:07,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641482094] [2022-02-23 20:13:07,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:07,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:07,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:07,743 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:07,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:07,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641482094] [2022-02-23 20:13:07,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641482094] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:07,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:07,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:07,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119401839] [2022-02-23 20:13:07,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:07,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:07,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:07,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:07,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:07,748 INFO L87 Difference]: Start difference. First operand 387 states and 601 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:10,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:12,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:13,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:13,266 INFO L93 Difference]: Finished difference Result 491 states and 754 transitions. [2022-02-23 20:13:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:13,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-23 20:13:13,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:13,267 INFO L225 Difference]: With dead ends: 491 [2022-02-23 20:13:13,267 INFO L226 Difference]: Without dead ends: 491 [2022-02-23 20:13:13,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:13,268 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:13,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 511 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 515 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:13:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-02-23 20:13:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 427. [2022-02-23 20:13:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.566350710900474) internal successors, (661), 422 states have internal predecessors, (661), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 665 transitions. [2022-02-23 20:13:13,273 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 665 transitions. Word has length 125 [2022-02-23 20:13:13,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:13,273 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 665 transitions. [2022-02-23 20:13:13,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 665 transitions. [2022-02-23 20:13:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-23 20:13:13,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:13,274 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:13,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 20:13:13,274 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:13,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:13,275 INFO L85 PathProgramCache]: Analyzing trace with hash 506505458, now seen corresponding path program 1 times [2022-02-23 20:13:13,275 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:13,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590933340] [2022-02-23 20:13:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:13,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:13,382 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-23 20:13:13,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:13,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590933340] [2022-02-23 20:13:13,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590933340] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:13,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:13,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:13,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730751067] [2022-02-23 20:13:13,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:13,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:13,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:13,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:13,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:13,384 INFO L87 Difference]: Start difference. First operand 427 states and 665 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:16,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:17,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:18,603 INFO L93 Difference]: Finished difference Result 483 states and 743 transitions. [2022-02-23 20:13:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:18,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-02-23 20:13:18,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:18,604 INFO L225 Difference]: With dead ends: 483 [2022-02-23 20:13:18,604 INFO L226 Difference]: Without dead ends: 483 [2022-02-23 20:13:18,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:18,605 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:18,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 639 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-23 20:13:18,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-02-23 20:13:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 451. [2022-02-23 20:13:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.562780269058296) internal successors, (697), 446 states have internal predecessors, (697), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:18,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 701 transitions. [2022-02-23 20:13:18,609 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 701 transitions. Word has length 125 [2022-02-23 20:13:18,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:18,610 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 701 transitions. [2022-02-23 20:13:18,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:18,610 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 701 transitions. [2022-02-23 20:13:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-23 20:13:18,611 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:18,611 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:18,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 20:13:18,611 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:18,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:18,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-02-23 20:13:18,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:18,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276603384] [2022-02-23 20:13:18,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:18,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:18,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:18,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276603384] [2022-02-23 20:13:18,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276603384] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:18,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:18,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:18,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004268829] [2022-02-23 20:13:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:18,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:18,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:18,698 INFO L87 Difference]: Start difference. First operand 451 states and 701 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:21,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:22,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:22,748 INFO L93 Difference]: Finished difference Result 508 states and 778 transitions. [2022-02-23 20:13:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:22,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-23 20:13:22,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:22,749 INFO L225 Difference]: With dead ends: 508 [2022-02-23 20:13:22,749 INFO L226 Difference]: Without dead ends: 508 [2022-02-23 20:13:22,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:22,750 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 69 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:22,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 517 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:13:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-02-23 20:13:22,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2022-02-23 20:13:22,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 704 transitions. [2022-02-23 20:13:22,755 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 704 transitions. Word has length 132 [2022-02-23 20:13:22,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:22,755 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 704 transitions. [2022-02-23 20:13:22,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:22,755 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 704 transitions. [2022-02-23 20:13:22,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-02-23 20:13:22,756 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:22,756 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:22,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:13:22,756 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1898923484, now seen corresponding path program 1 times [2022-02-23 20:13:22,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:22,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132505921] [2022-02-23 20:13:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:22,843 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-23 20:13:22,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:22,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132505921] [2022-02-23 20:13:22,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132505921] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:22,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:22,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:22,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149430647] [2022-02-23 20:13:22,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:22,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:22,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:22,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:22,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:22,844 INFO L87 Difference]: Start difference. First operand 454 states and 704 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:24,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:26,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:28,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:30,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:30,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:30,611 INFO L93 Difference]: Finished difference Result 536 states and 814 transitions. [2022-02-23 20:13:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:30,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 142 [2022-02-23 20:13:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:30,613 INFO L225 Difference]: With dead ends: 536 [2022-02-23 20:13:30,613 INFO L226 Difference]: Without dead ends: 536 [2022-02-23 20:13:30,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:30,613 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 153 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 59 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:30,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 494 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-23 20:13:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-02-23 20:13:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 454. [2022-02-23 20:13:30,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5412026726057906) internal successors, (692), 449 states have internal predecessors, (692), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:30,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 696 transitions. [2022-02-23 20:13:30,623 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 696 transitions. Word has length 142 [2022-02-23 20:13:30,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:30,623 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 696 transitions. [2022-02-23 20:13:30,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 696 transitions. [2022-02-23 20:13:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:13:30,625 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:30,625 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:30,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:13:30,625 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:30,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash 808274459, now seen corresponding path program 1 times [2022-02-23 20:13:30,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:30,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030092733] [2022-02-23 20:13:30,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:30,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:13:30,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:30,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030092733] [2022-02-23 20:13:30,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030092733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:30,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:30,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:30,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788375312] [2022-02-23 20:13:30,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:30,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:30,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:30,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:30,760 INFO L87 Difference]: Start difference. First operand 454 states and 696 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:32,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:34,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:35,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:35,106 INFO L93 Difference]: Finished difference Result 488 states and 744 transitions. [2022-02-23 20:13:35,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:35,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-23 20:13:35,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:35,109 INFO L225 Difference]: With dead ends: 488 [2022-02-23 20:13:35,109 INFO L226 Difference]: Without dead ends: 488 [2022-02-23 20:13:35,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:35,109 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 90 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:35,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 533 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-23 20:13:35,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-02-23 20:13:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-02-23 20:13:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5389755011135857) internal successors, (691), 449 states have internal predecessors, (691), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:35,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 695 transitions. [2022-02-23 20:13:35,116 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 695 transitions. Word has length 145 [2022-02-23 20:13:35,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:35,116 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 695 transitions. [2022-02-23 20:13:35,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:35,116 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 695 transitions. [2022-02-23 20:13:35,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:13:35,117 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:35,117 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:35,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:13:35,118 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:35,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-02-23 20:13:35,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:35,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329464576] [2022-02-23 20:13:35,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:35,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:35,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:13:35,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:35,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329464576] [2022-02-23 20:13:35,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329464576] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:35,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:35,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:35,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598605176] [2022-02-23 20:13:35,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:35,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:35,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:35,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:35,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:35,235 INFO L87 Difference]: Start difference. First operand 454 states and 695 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:36,479 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 [] [2022-02-23 20:13:38,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:39,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:39,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:39,680 INFO L93 Difference]: Finished difference Result 576 states and 871 transitions. [2022-02-23 20:13:39,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:39,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-23 20:13:39,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:39,682 INFO L225 Difference]: With dead ends: 576 [2022-02-23 20:13:39,682 INFO L226 Difference]: Without dead ends: 576 [2022-02-23 20:13:39,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:39,682 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:39,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 406 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-23 20:13:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-02-23 20:13:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 484. [2022-02-23 20:13:39,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5302713987473904) internal successors, (733), 479 states have internal predecessors, (733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:39,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 737 transitions. [2022-02-23 20:13:39,687 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 737 transitions. Word has length 145 [2022-02-23 20:13:39,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:39,687 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 737 transitions. [2022-02-23 20:13:39,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 737 transitions. [2022-02-23 20:13:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:13:39,688 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:39,688 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:39,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:13:39,689 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:39,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1608810012, now seen corresponding path program 1 times [2022-02-23 20:13:39,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:39,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605598575] [2022-02-23 20:13:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:39,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:13:39,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:39,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605598575] [2022-02-23 20:13:39,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605598575] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:39,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:39,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:39,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525989780] [2022-02-23 20:13:39,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:39,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:39,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:39,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:39,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:39,783 INFO L87 Difference]: Start difference. First operand 484 states and 737 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:41,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:42,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:44,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:45,002 INFO L93 Difference]: Finished difference Result 496 states and 753 transitions. [2022-02-23 20:13:45,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:45,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-23 20:13:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:45,004 INFO L225 Difference]: With dead ends: 496 [2022-02-23 20:13:45,004 INFO L226 Difference]: Without dead ends: 496 [2022-02-23 20:13:45,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:45,004 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:45,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 625 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-23 20:13:45,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-02-23 20:13:45,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-02-23 20:13:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5281837160751566) internal successors, (732), 479 states have internal predecessors, (732), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 736 transitions. [2022-02-23 20:13:45,009 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 736 transitions. Word has length 145 [2022-02-23 20:13:45,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:45,009 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 736 transitions. [2022-02-23 20:13:45,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:45,009 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 736 transitions. [2022-02-23 20:13:45,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-02-23 20:13:45,010 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:45,010 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:45,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:13:45,011 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:45,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:45,011 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-02-23 20:13:45,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:45,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898839004] [2022-02-23 20:13:45,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:45,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:13:45,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:45,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898839004] [2022-02-23 20:13:45,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898839004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:45,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:45,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:45,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196892699] [2022-02-23 20:13:45,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:45,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:45,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:45,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:45,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:45,111 INFO L87 Difference]: Start difference. First operand 484 states and 736 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:46,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:48,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:50,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:50,799 INFO L93 Difference]: Finished difference Result 516 states and 782 transitions. [2022-02-23 20:13:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-02-23 20:13:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:50,801 INFO L225 Difference]: With dead ends: 516 [2022-02-23 20:13:50,801 INFO L226 Difference]: Without dead ends: 516 [2022-02-23 20:13:50,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:50,802 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 67 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:50,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 537 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-23 20:13:50,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-02-23 20:13:50,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-02-23 20:13:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5260960334029228) internal successors, (731), 479 states have internal predecessors, (731), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 735 transitions. [2022-02-23 20:13:50,807 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 735 transitions. Word has length 146 [2022-02-23 20:13:50,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:50,807 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 735 transitions. [2022-02-23 20:13:50,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:50,807 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 735 transitions. [2022-02-23 20:13:50,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:13:50,808 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:50,808 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:50,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:13:50,808 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:50,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:50,809 INFO L85 PathProgramCache]: Analyzing trace with hash 377443891, now seen corresponding path program 1 times [2022-02-23 20:13:50,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:50,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679894095] [2022-02-23 20:13:50,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:50,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-02-23 20:13:50,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:50,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679894095] [2022-02-23 20:13:50,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679894095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:50,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:50,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:50,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181205881] [2022-02-23 20:13:50,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:50,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:50,902 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:50,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:50,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:50,902 INFO L87 Difference]: Start difference. First operand 484 states and 735 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:52,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:54,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:56,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:56,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:56,440 INFO L93 Difference]: Finished difference Result 566 states and 846 transitions. [2022-02-23 20:13:56,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:56,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:13:56,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:56,441 INFO L225 Difference]: With dead ends: 566 [2022-02-23 20:13:56,442 INFO L226 Difference]: Without dead ends: 566 [2022-02-23 20:13:56,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:13:56,443 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 142 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:56,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 396 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:13:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-02-23 20:13:56,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 484. [2022-02-23 20:13:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.511482254697286) internal successors, (724), 479 states have internal predecessors, (724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:56,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 728 transitions. [2022-02-23 20:13:56,448 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 728 transitions. Word has length 147 [2022-02-23 20:13:56,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:56,448 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 728 transitions. [2022-02-23 20:13:56,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:56,448 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 728 transitions. [2022-02-23 20:13:56,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:13:56,449 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:56,449 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:56,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:13:56,450 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:56,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:56,450 INFO L85 PathProgramCache]: Analyzing trace with hash 892964340, now seen corresponding path program 1 times [2022-02-23 20:13:56,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:56,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825465557] [2022-02-23 20:13:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:56,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:56,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:56,537 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-23 20:13:56,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:56,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825465557] [2022-02-23 20:13:56,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825465557] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:56,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:56,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:13:56,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002514378] [2022-02-23 20:13:56,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:56,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:13:56,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:56,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:13:56,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:13:56,538 INFO L87 Difference]: Start difference. First operand 484 states and 728 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:59,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:00,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:01,171 INFO L93 Difference]: Finished difference Result 939 states and 1408 transitions. [2022-02-23 20:14:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:14:01,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:01,180 INFO L225 Difference]: With dead ends: 939 [2022-02-23 20:14:01,180 INFO L226 Difference]: Without dead ends: 939 [2022-02-23 20:14:01,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:01,181 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:01,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 447 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 319 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:14:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-02-23 20:14:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-02-23 20:14:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5032119914346895) internal successors, (1404), 934 states have internal predecessors, (1404), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1408 transitions. [2022-02-23 20:14:01,190 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1408 transitions. Word has length 147 [2022-02-23 20:14:01,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:01,190 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1408 transitions. [2022-02-23 20:14:01,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:01,190 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1408 transitions. [2022-02-23 20:14:01,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:14:01,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:01,192 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:01,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:14:01,192 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:01,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1908090507, now seen corresponding path program 1 times [2022-02-23 20:14:01,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:01,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244726330] [2022-02-23 20:14:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:01,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:01,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-23 20:14:01,268 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:01,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244726330] [2022-02-23 20:14:01,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244726330] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:01,268 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:01,268 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:01,268 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804510143] [2022-02-23 20:14:01,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:01,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:01,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:01,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:01,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:01,269 INFO L87 Difference]: Start difference. First operand 939 states and 1408 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:04,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:04,502 INFO L93 Difference]: Finished difference Result 966 states and 1443 transitions. [2022-02-23 20:14:04,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:04,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:14:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:04,505 INFO L225 Difference]: With dead ends: 966 [2022-02-23 20:14:04,505 INFO L226 Difference]: Without dead ends: 966 [2022-02-23 20:14:04,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:04,505 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:04,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:14:04,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-02-23 20:14:04,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-02-23 20:14:04,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4973985431841832) internal successors, (1439), 961 states have internal predecessors, (1439), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1443 transitions. [2022-02-23 20:14:04,513 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1443 transitions. Word has length 147 [2022-02-23 20:14:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:04,514 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1443 transitions. [2022-02-23 20:14:04,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:04,514 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1443 transitions. [2022-02-23 20:14:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:14:04,515 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:04,515 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:04,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:14:04,515 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash 483416694, now seen corresponding path program 1 times [2022-02-23 20:14:04,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:04,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660540433] [2022-02-23 20:14:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:04,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:04,589 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-02-23 20:14:04,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:04,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660540433] [2022-02-23 20:14:04,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660540433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:04,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:04,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:04,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456053310] [2022-02-23 20:14:04,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:04,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:04,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:04,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:04,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:04,590 INFO L87 Difference]: Start difference. First operand 966 states and 1443 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:07,641 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 [] [2022-02-23 20:14:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:07,881 INFO L93 Difference]: Finished difference Result 968 states and 1445 transitions. [2022-02-23 20:14:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:14:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:07,884 INFO L225 Difference]: With dead ends: 968 [2022-02-23 20:14:07,884 INFO L226 Difference]: Without dead ends: 968 [2022-02-23 20:14:07,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:07,884 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:07,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-02-23 20:14:07,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-02-23 20:14:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-02-23 20:14:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4963655244029075) internal successors, (1441), 963 states have internal predecessors, (1441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1445 transitions. [2022-02-23 20:14:07,893 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1445 transitions. Word has length 147 [2022-02-23 20:14:07,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:07,894 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1445 transitions. [2022-02-23 20:14:07,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:07,894 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1445 transitions. [2022-02-23 20:14:07,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-23 20:14:07,895 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:07,895 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:07,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:14:07,895 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:07,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:07,896 INFO L85 PathProgramCache]: Analyzing trace with hash 950619995, now seen corresponding path program 1 times [2022-02-23 20:14:07,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:07,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55252925] [2022-02-23 20:14:07,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:07,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:07,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:07,982 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:14:07,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:07,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55252925] [2022-02-23 20:14:07,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55252925] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:07,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:07,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:07,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354502319] [2022-02-23 20:14:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:07,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:07,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:07,983 INFO L87 Difference]: Start difference. First operand 968 states and 1445 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:09,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:11,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:13,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:13,833 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-02-23 20:14:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:13,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-23 20:14:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:13,836 INFO L225 Difference]: With dead ends: 1423 [2022-02-23 20:14:13,836 INFO L226 Difference]: Without dead ends: 1423 [2022-02-23 20:14:13,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:13,837 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 153 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:13,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-02-23 20:14:13,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-02-23 20:14:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-02-23 20:14:13,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.495768688293371) internal successors, (2121), 1418 states have internal predecessors, (2121), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:13,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-02-23 20:14:13,848 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-02-23 20:14:13,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:13,848 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-02-23 20:14:13,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:13,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-02-23 20:14:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-02-23 20:14:13,850 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:13,850 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:13,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:14:13,851 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:13,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:13,851 INFO L85 PathProgramCache]: Analyzing trace with hash -685662058, now seen corresponding path program 1 times [2022-02-23 20:14:13,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:13,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458161901] [2022-02-23 20:14:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:13,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-02-23 20:14:13,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:13,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458161901] [2022-02-23 20:14:13,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458161901] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:13,959 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:13,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:13,959 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639832786] [2022-02-23 20:14:13,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:13,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:13,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:13,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:13,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:13,960 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:17,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:17,973 INFO L93 Difference]: Finished difference Result 1603 states and 2380 transitions. [2022-02-23 20:14:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-02-23 20:14:17,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:17,977 INFO L225 Difference]: With dead ends: 1603 [2022-02-23 20:14:17,977 INFO L226 Difference]: Without dead ends: 1603 [2022-02-23 20:14:17,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:17,978 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 47 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:17,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 649 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 525 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:14:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-02-23 20:14:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1507. [2022-02-23 20:14:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.496005326231691) internal successors, (2247), 1502 states have internal predecessors, (2247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2251 transitions. [2022-02-23 20:14:17,990 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2251 transitions. Word has length 178 [2022-02-23 20:14:17,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:17,990 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2251 transitions. [2022-02-23 20:14:17,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2251 transitions. [2022-02-23 20:14:17,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-02-23 20:14:17,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:17,993 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:17,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:14:17,994 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:17,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:17,994 INFO L85 PathProgramCache]: Analyzing trace with hash -407815232, now seen corresponding path program 1 times [2022-02-23 20:14:17,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:17,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665155825] [2022-02-23 20:14:17,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:17,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-23 20:14:18,100 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:18,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665155825] [2022-02-23 20:14:18,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665155825] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:18,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:18,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:18,100 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822883233] [2022-02-23 20:14:18,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:18,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:18,101 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:18,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:18,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:18,101 INFO L87 Difference]: Start difference. First operand 1507 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:20,064 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 [] [2022-02-23 20:14:22,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:22,941 INFO L93 Difference]: Finished difference Result 1718 states and 2514 transitions. [2022-02-23 20:14:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:22,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-02-23 20:14:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:22,945 INFO L225 Difference]: With dead ends: 1718 [2022-02-23 20:14:22,945 INFO L226 Difference]: Without dead ends: 1718 [2022-02-23 20:14:22,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:22,945 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 149 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:22,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 402 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-02-23 20:14:22,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-02-23 20:14:22,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-02-23 20:14:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4800266311584553) internal successors, (2223), 1502 states have internal predecessors, (2223), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2227 transitions. [2022-02-23 20:14:22,958 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2227 transitions. Word has length 198 [2022-02-23 20:14:22,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:22,958 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2227 transitions. [2022-02-23 20:14:22,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2227 transitions. [2022-02-23 20:14:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-02-23 20:14:22,960 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:22,960 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:22,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:14:22,960 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:22,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:22,961 INFO L85 PathProgramCache]: Analyzing trace with hash -216238576, now seen corresponding path program 1 times [2022-02-23 20:14:22,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:22,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444860058] [2022-02-23 20:14:22,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:22,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-02-23 20:14:23,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:23,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444860058] [2022-02-23 20:14:23,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444860058] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:23,085 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:23,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:23,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242064921] [2022-02-23 20:14:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:23,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:23,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:23,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:23,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:23,086 INFO L87 Difference]: Start difference. First operand 1507 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:24,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:25,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:27,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:27,715 INFO L93 Difference]: Finished difference Result 1718 states and 2490 transitions. [2022-02-23 20:14:27,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:27,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-02-23 20:14:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:27,719 INFO L225 Difference]: With dead ends: 1718 [2022-02-23 20:14:27,719 INFO L226 Difference]: Without dead ends: 1718 [2022-02-23 20:14:27,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:27,720 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:27,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-02-23 20:14:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-02-23 20:14:27,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-02-23 20:14:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4640479360852197) internal successors, (2199), 1502 states have internal predecessors, (2199), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2203 transitions. [2022-02-23 20:14:27,741 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2203 transitions. Word has length 201 [2022-02-23 20:14:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2203 transitions. [2022-02-23 20:14:27,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:27,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2203 transitions. [2022-02-23 20:14:27,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-23 20:14:27,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:27,744 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:27,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:14:27,744 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:27,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:27,744 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-02-23 20:14:27,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:27,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219628789] [2022-02-23 20:14:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:27,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-02-23 20:14:27,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:27,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219628789] [2022-02-23 20:14:27,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219628789] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:27,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:27,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:27,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112595633] [2022-02-23 20:14:27,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:27,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:27,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:27,844 INFO L87 Difference]: Start difference. First operand 1507 states and 2203 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:29,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:30,098 INFO L93 Difference]: Finished difference Result 1990 states and 2909 transitions. [2022-02-23 20:14:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:30,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-02-23 20:14:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:30,103 INFO L225 Difference]: With dead ends: 1990 [2022-02-23 20:14:30,103 INFO L226 Difference]: Without dead ends: 1990 [2022-02-23 20:14:30,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:30,103 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:30,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 20:14:30,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2022-02-23 20:14:30,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2022-02-23 20:14:30,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1985 states have (on average 1.4634760705289673) internal successors, (2905), 1985 states have internal predecessors, (2905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:30,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2909 transitions. [2022-02-23 20:14:30,118 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2909 transitions. Word has length 202 [2022-02-23 20:14:30,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:30,119 INFO L470 AbstractCegarLoop]: Abstraction has 1990 states and 2909 transitions. [2022-02-23 20:14:30,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:30,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2909 transitions. [2022-02-23 20:14:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-23 20:14:30,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:30,121 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:30,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:14:30,121 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:30,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-02-23 20:14:30,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:30,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005021733] [2022-02-23 20:14:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:30,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:30,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-02-23 20:14:30,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:30,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005021733] [2022-02-23 20:14:30,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005021733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:30,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:30,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:30,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302051619] [2022-02-23 20:14:30,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:30,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:30,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:30,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:30,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:30,233 INFO L87 Difference]: Start difference. First operand 1990 states and 2909 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:31,277 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 [] [2022-02-23 20:14:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:33,151 INFO L93 Difference]: Finished difference Result 2474 states and 3622 transitions. [2022-02-23 20:14:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:33,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 202 [2022-02-23 20:14:33,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:33,167 INFO L225 Difference]: With dead ends: 2474 [2022-02-23 20:14:33,167 INFO L226 Difference]: Without dead ends: 2474 [2022-02-23 20:14:33,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:33,168 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:33,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-23 20:14:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-02-23 20:14:33,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-02-23 20:14:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2469 states have (on average 1.465370595382746) internal successors, (3618), 2469 states have internal predecessors, (3618), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3622 transitions. [2022-02-23 20:14:33,190 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3622 transitions. Word has length 202 [2022-02-23 20:14:33,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:33,190 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 3622 transitions. [2022-02-23 20:14:33,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:33,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3622 transitions. [2022-02-23 20:14:33,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-02-23 20:14:33,193 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:33,193 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:33,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:14:33,194 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:33,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:33,194 INFO L85 PathProgramCache]: Analyzing trace with hash 745953542, now seen corresponding path program 1 times [2022-02-23 20:14:33,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:33,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041477155] [2022-02-23 20:14:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-02-23 20:14:33,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:33,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041477155] [2022-02-23 20:14:33,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041477155] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:33,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:33,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:33,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77370030] [2022-02-23 20:14:33,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:33,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:33,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:33,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:33,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:33,348 INFO L87 Difference]: Start difference. First operand 2474 states and 3622 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:34,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:36,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:37,164 INFO L93 Difference]: Finished difference Result 2958 states and 4336 transitions. [2022-02-23 20:14:37,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:37,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-02-23 20:14:37,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:37,169 INFO L225 Difference]: With dead ends: 2958 [2022-02-23 20:14:37,169 INFO L226 Difference]: Without dead ends: 2958 [2022-02-23 20:14:37,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:37,169 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:37,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 386 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-23 20:14:37,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-02-23 20:14:37,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2022-02-23 20:14:37,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2953 states have (on average 1.4669827294277007) internal successors, (4332), 2953 states have internal predecessors, (4332), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:37,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4336 transitions. [2022-02-23 20:14:37,200 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4336 transitions. Word has length 241 [2022-02-23 20:14:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:37,200 INFO L470 AbstractCegarLoop]: Abstraction has 2958 states and 4336 transitions. [2022-02-23 20:14:37,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4336 transitions. [2022-02-23 20:14:37,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-02-23 20:14:37,203 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:37,203 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:37,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 20:14:37,204 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:37,204 INFO L85 PathProgramCache]: Analyzing trace with hash -789418403, now seen corresponding path program 1 times [2022-02-23 20:14:37,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:37,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159972523] [2022-02-23 20:14:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:37,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:37,340 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-02-23 20:14:37,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:37,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159972523] [2022-02-23 20:14:37,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159972523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:37,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:37,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:37,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636384096] [2022-02-23 20:14:37,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:37,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:37,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:37,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:37,355 INFO L87 Difference]: Start difference. First operand 2958 states and 4336 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:40,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:40,772 INFO L93 Difference]: Finished difference Result 3442 states and 5051 transitions. [2022-02-23 20:14:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:40,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 243 [2022-02-23 20:14:40,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:40,777 INFO L225 Difference]: With dead ends: 3442 [2022-02-23 20:14:40,777 INFO L226 Difference]: Without dead ends: 3442 [2022-02-23 20:14:40,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:40,778 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:40,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 385 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-23 20:14:40,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-02-23 20:14:40,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2022-02-23 20:14:40,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3437 states have (on average 1.4684317718940938) internal successors, (5047), 3437 states have internal predecessors, (5047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:40,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5051 transitions. [2022-02-23 20:14:40,803 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5051 transitions. Word has length 243 [2022-02-23 20:14:40,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:40,803 INFO L470 AbstractCegarLoop]: Abstraction has 3442 states and 5051 transitions. [2022-02-23 20:14:40,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5051 transitions. [2022-02-23 20:14:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-02-23 20:14:40,807 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:40,807 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:40,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:14:40,808 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:40,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:40,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-02-23 20:14:40,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:40,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432121224] [2022-02-23 20:14:40,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:40,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-02-23 20:14:40,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:40,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432121224] [2022-02-23 20:14:40,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432121224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:40,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:40,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:40,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173110793] [2022-02-23 20:14:40,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:41,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:41,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:41,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:41,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:41,000 INFO L87 Difference]: Start difference. First operand 3442 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:42,678 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 [] [2022-02-23 20:14:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:44,170 INFO L93 Difference]: Finished difference Result 3920 states and 5751 transitions. [2022-02-23 20:14:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 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 275 [2022-02-23 20:14:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:44,176 INFO L225 Difference]: With dead ends: 3920 [2022-02-23 20:14:44,176 INFO L226 Difference]: Without dead ends: 3920 [2022-02-23 20:14:44,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:44,177 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:44,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:14:44,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-02-23 20:14:44,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2022-02-23 20:14:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3915 states have (on average 1.4679438058748404) internal successors, (5747), 3915 states have internal predecessors, (5747), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5751 transitions. [2022-02-23 20:14:44,204 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5751 transitions. Word has length 275 [2022-02-23 20:14:44,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:44,205 INFO L470 AbstractCegarLoop]: Abstraction has 3920 states and 5751 transitions. [2022-02-23 20:14:44,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5751 transitions. [2022-02-23 20:14:44,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-02-23 20:14:44,209 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:44,209 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:44,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:14:44,209 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:44,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:44,210 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-02-23 20:14:44,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:44,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6632988] [2022-02-23 20:14:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:44,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-23 20:14:44,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:44,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6632988] [2022-02-23 20:14:44,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6632988] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:44,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:44,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:44,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589305467] [2022-02-23 20:14:44,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:44,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:44,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:44,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:44,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:44,364 INFO L87 Difference]: Start difference. First operand 3920 states and 5751 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:46,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:46,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:46,621 INFO L93 Difference]: Finished difference Result 4371 states and 6410 transitions. [2022-02-23 20:14:46,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:46,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 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 275 [2022-02-23 20:14:46,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:46,629 INFO L225 Difference]: With dead ends: 4371 [2022-02-23 20:14:46,629 INFO L226 Difference]: Without dead ends: 4371 [2022-02-23 20:14:46,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:46,629 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:46,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-02-23 20:14:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-02-23 20:14:46,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4371. [2022-02-23 20:14:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4366 states have (on average 1.467246907924874) internal successors, (6406), 4366 states have internal predecessors, (6406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6410 transitions. [2022-02-23 20:14:46,687 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6410 transitions. Word has length 275 [2022-02-23 20:14:46,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:46,688 INFO L470 AbstractCegarLoop]: Abstraction has 4371 states and 6410 transitions. [2022-02-23 20:14:46,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6410 transitions. [2022-02-23 20:14:46,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-02-23 20:14:46,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:46,694 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:46,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:14:46,694 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:46,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:46,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1963979722, now seen corresponding path program 1 times [2022-02-23 20:14:46,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:46,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743328460] [2022-02-23 20:14:46,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:46,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-02-23 20:14:46,840 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:46,840 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743328460] [2022-02-23 20:14:46,840 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743328460] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:46,840 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:46,840 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:46,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602406884] [2022-02-23 20:14:46,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:46,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:46,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:46,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:46,841 INFO L87 Difference]: Start difference. First operand 4371 states and 6410 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:49,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:49,373 INFO L93 Difference]: Finished difference Result 4855 states and 7128 transitions. [2022-02-23 20:14:49,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 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 350 [2022-02-23 20:14:49,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:49,379 INFO L225 Difference]: With dead ends: 4855 [2022-02-23 20:14:49,379 INFO L226 Difference]: Without dead ends: 4855 [2022-02-23 20:14:49,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:49,380 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:49,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 382 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-23 20:14:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2022-02-23 20:14:49,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4855. [2022-02-23 20:14:49,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4850 states have (on average 1.4688659793814434) internal successors, (7124), 4850 states have internal predecessors, (7124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7128 transitions. [2022-02-23 20:14:49,415 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7128 transitions. Word has length 350 [2022-02-23 20:14:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:49,415 INFO L470 AbstractCegarLoop]: Abstraction has 4855 states and 7128 transitions. [2022-02-23 20:14:49,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7128 transitions. [2022-02-23 20:14:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-02-23 20:14:49,421 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:49,421 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:49,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:14:49,421 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:49,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash 153388337, now seen corresponding path program 1 times [2022-02-23 20:14:49,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:49,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091927594] [2022-02-23 20:14:49,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:49,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:49,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-02-23 20:14:49,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:49,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091927594] [2022-02-23 20:14:49,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091927594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:49,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:49,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:49,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689953593] [2022-02-23 20:14:49,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:49,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:49,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:49,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:49,609 INFO L87 Difference]: Start difference. First operand 4855 states and 7128 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:51,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:53,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:53,827 INFO L93 Difference]: Finished difference Result 5339 states and 7847 transitions. [2022-02-23 20:14:53,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:53,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 391 [2022-02-23 20:14:53,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:53,834 INFO L225 Difference]: With dead ends: 5339 [2022-02-23 20:14:53,834 INFO L226 Difference]: Without dead ends: 5339 [2022-02-23 20:14:53,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:53,835 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:53,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-02-23 20:14:53,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-02-23 20:14:53,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-02-23 20:14:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5334 states have (on average 1.4703787026621673) internal successors, (7843), 5334 states have internal predecessors, (7843), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7847 transitions. [2022-02-23 20:14:53,901 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7847 transitions. Word has length 391 [2022-02-23 20:14:53,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:53,901 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 7847 transitions. [2022-02-23 20:14:53,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:53,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7847 transitions. [2022-02-23 20:14:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-02-23 20:14:53,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:53,907 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:53,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-23 20:14:53,908 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-02-23 20:14:53,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:53,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472655463] [2022-02-23 20:14:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:53,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:54,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:54,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-02-23 20:14:54,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:54,097 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472655463] [2022-02-23 20:14:54,097 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472655463] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:54,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:54,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:54,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070624634] [2022-02-23 20:14:54,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:54,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:54,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:54,098 INFO L87 Difference]: Start difference. First operand 5339 states and 7847 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:55,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:56,274 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:57,270 INFO L93 Difference]: Finished difference Result 5818 states and 8548 transitions. [2022-02-23 20:14:57,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:57,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 398 [2022-02-23 20:14:57,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:57,281 INFO L225 Difference]: With dead ends: 5818 [2022-02-23 20:14:57,281 INFO L226 Difference]: Without dead ends: 5818 [2022-02-23 20:14:57,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:57,281 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:57,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:14:57,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2022-02-23 20:14:57,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2022-02-23 20:14:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5813 states have (on average 1.469809048683984) internal successors, (8544), 5813 states have internal predecessors, (8544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8548 transitions. [2022-02-23 20:14:57,341 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8548 transitions. Word has length 398 [2022-02-23 20:14:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:57,342 INFO L470 AbstractCegarLoop]: Abstraction has 5818 states and 8548 transitions. [2022-02-23 20:14:57,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8548 transitions. [2022-02-23 20:14:57,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-02-23 20:14:57,349 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:57,349 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:57,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-23 20:14:57,349 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:57,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:57,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1038136657, now seen corresponding path program 1 times [2022-02-23 20:14:57,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:57,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514256730] [2022-02-23 20:14:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:57,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:57,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-02-23 20:14:57,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:57,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514256730] [2022-02-23 20:14:57,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514256730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:57,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:57,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:57,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149508324] [2022-02-23 20:14:57,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:57,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:57,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:57,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:57,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:57,629 INFO L87 Difference]: Start difference. First operand 5818 states and 8548 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:00,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:00,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:00,741 INFO L93 Difference]: Finished difference Result 6302 states and 9269 transitions. [2022-02-23 20:15:00,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:15:00,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 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 474 [2022-02-23 20:15:00,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:00,748 INFO L225 Difference]: With dead ends: 6302 [2022-02-23 20:15:00,748 INFO L226 Difference]: Without dead ends: 6302 [2022-02-23 20:15:00,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:15:00,749 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:00,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 379 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-23 20:15:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2022-02-23 20:15:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6302. [2022-02-23 20:15:00,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 6297 states have (on average 1.4713355566142607) internal successors, (9265), 6297 states have internal predecessors, (9265), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:00,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 9269 transitions. [2022-02-23 20:15:00,795 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 9269 transitions. Word has length 474 [2022-02-23 20:15:00,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:00,796 INFO L470 AbstractCegarLoop]: Abstraction has 6302 states and 9269 transitions. [2022-02-23 20:15:00,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:00,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 9269 transitions. [2022-02-23 20:15:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-02-23 20:15:00,804 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:00,804 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:00,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-23 20:15:00,804 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:00,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:00,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1782869354, now seen corresponding path program 1 times [2022-02-23 20:15:00,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:00,806 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788726167] [2022-02-23 20:15:00,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:00,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-02-23 20:15:01,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:01,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788726167] [2022-02-23 20:15:01,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788726167] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:01,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422516508] [2022-02-23 20:15:01,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:01,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:15:01,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:15:01,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:15:01,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:15:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:02,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-23 20:15:02,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:15:02,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-02-23 20:15:02,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 20:15:02,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422516508] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:02,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 20:15:02,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-23 20:15:02,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768109691] [2022-02-23 20:15:02,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:02,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-23 20:15:02,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:02,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-23 20:15:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:15:02,662 INFO L87 Difference]: Start difference. First operand 6302 states and 9269 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:02,725 INFO L93 Difference]: Finished difference Result 6786 states and 9991 transitions. [2022-02-23 20:15:02,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-23 20:15:02,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 516 [2022-02-23 20:15:02,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:02,732 INFO L225 Difference]: With dead ends: 6786 [2022-02-23 20:15:02,732 INFO L226 Difference]: Without dead ends: 6786 [2022-02-23 20:15:02,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:15:02,733 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:02,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-23 20:15:02,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2022-02-23 20:15:02,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6786. [2022-02-23 20:15:02,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 6781 states have (on average 1.4727916236543284) internal successors, (9987), 6781 states have internal predecessors, (9987), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9991 transitions. [2022-02-23 20:15:02,786 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9991 transitions. Word has length 516 [2022-02-23 20:15:02,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:02,786 INFO L470 AbstractCegarLoop]: Abstraction has 6786 states and 9991 transitions. [2022-02-23 20:15:02,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9991 transitions. [2022-02-23 20:15:02,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-23 20:15:02,794 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:02,795 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:02,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-23 20:15:03,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-02-23 20:15:03,016 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:03,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:03,016 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-02-23 20:15:03,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:03,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064675090] [2022-02-23 20:15:03,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:03,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-02-23 20:15:03,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:03,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064675090] [2022-02-23 20:15:03,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064675090] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:03,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:03,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:03,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059063256] [2022-02-23 20:15:03,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:03,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:03,286 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:03,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:03,286 INFO L87 Difference]: Start difference. First operand 6786 states and 9991 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:06,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:07,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:07,423 INFO L93 Difference]: Finished difference Result 7906 states and 11579 transitions. [2022-02-23 20:15:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:07,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 524 [2022-02-23 20:15:07,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:07,428 INFO L225 Difference]: With dead ends: 7906 [2022-02-23 20:15:07,428 INFO L226 Difference]: Without dead ends: 7906 [2022-02-23 20:15:07,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:07,429 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 65 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:07,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 683 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:15:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2022-02-23 20:15:07,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7360. [2022-02-23 20:15:07,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7355 states have (on average 1.4739632902787219) internal successors, (10841), 7355 states have internal predecessors, (10841), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 10845 transitions. [2022-02-23 20:15:07,498 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 10845 transitions. Word has length 524 [2022-02-23 20:15:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:07,498 INFO L470 AbstractCegarLoop]: Abstraction has 7360 states and 10845 transitions. [2022-02-23 20:15:07,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 10845 transitions. [2022-02-23 20:15:07,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-02-23 20:15:07,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:07,506 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:07,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-23 20:15:07,506 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:07,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-02-23 20:15:07,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:07,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906133838] [2022-02-23 20:15:07,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:07,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1695 proven. 480 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-02-23 20:15:08,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:08,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906133838] [2022-02-23 20:15:08,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906133838] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:08,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292500988] [2022-02-23 20:15:08,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:08,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:15:08,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:15:08,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:15:08,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-23 20:15:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:09,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-23 20:15:09,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:15:09,335 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:15:09,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:15:09,425 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:15:09,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-23 20:15:09,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:15:09,758 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:15:09,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:15:09,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:09,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:15:09,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:15:09,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-23 20:15:09,918 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-02-23 20:15:09,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 77 [2022-02-23 20:15:10,020 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-02-23 20:15:10,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 49 [2022-02-23 20:15:10,274 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:15:10,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:15:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-02-23 20:15:10,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:15:10,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-02-23 20:15:10,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-02-23 20:15:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-02-23 20:15:15,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292500988] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:15,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:15:15,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 14] total 28 [2022-02-23 20:15:15,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249026559] [2022-02-23 20:15:15,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:15,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:15:15,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:15:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=662, Unknown=1, NotChecked=0, Total=756 [2022-02-23 20:15:15,173 INFO L87 Difference]: Start difference. First operand 7360 states and 10845 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:25,573 INFO L93 Difference]: Finished difference Result 14597 states and 21552 transitions. [2022-02-23 20:15:25,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:15:25,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 524 [2022-02-23 20:15:25,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:25,587 INFO L225 Difference]: With dead ends: 14597 [2022-02-23 20:15:25,587 INFO L226 Difference]: Without dead ends: 14597 [2022-02-23 20:15:25,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=122, Invalid=867, Unknown=3, NotChecked=0, Total=992 [2022-02-23 20:15:25,587 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 294 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 175 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:25,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 1072 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 615 Invalid, 0 Unknown, 175 Unchecked, 2.2s Time] [2022-02-23 20:15:25,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14597 states. [2022-02-23 20:15:25,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14597 to 12608. [2022-02-23 20:15:25,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12603 states have (on average 1.4899627072919146) internal successors, (18778), 12603 states have internal predecessors, (18778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:25,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 18782 transitions. [2022-02-23 20:15:25,717 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 18782 transitions. Word has length 524 [2022-02-23 20:15:25,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:25,718 INFO L470 AbstractCegarLoop]: Abstraction has 12608 states and 18782 transitions. [2022-02-23 20:15:25,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:25,718 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 18782 transitions. [2022-02-23 20:15:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-23 20:15:25,728 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:25,729 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:25,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-23 20:15:25,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-02-23 20:15:25,947 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:25,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-02-23 20:15:25,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:25,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548483648] [2022-02-23 20:15:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:25,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-02-23 20:15:26,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:26,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548483648] [2022-02-23 20:15:26,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548483648] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:26,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:26,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:26,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578671096] [2022-02-23 20:15:26,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:26,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:26,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:26,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:26,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:26,174 INFO L87 Difference]: Start difference. First operand 12608 states and 18782 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:28,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:30,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:32,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:32,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:32,939 INFO L93 Difference]: Finished difference Result 13543 states and 20037 transitions. [2022-02-23 20:15:32,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:32,939 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 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 525 [2022-02-23 20:15:32,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:32,951 INFO L225 Difference]: With dead ends: 13543 [2022-02-23 20:15:32,952 INFO L226 Difference]: Without dead ends: 13543 [2022-02-23 20:15:32,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:32,952 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 63 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:32,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 681 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 582 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-02-23 20:15:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-02-23 20:15:33,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-02-23 20:15:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4894190378061345) internal successors, (18792), 12617 states have internal predecessors, (18792), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:33,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18796 transitions. [2022-02-23 20:15:33,054 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18796 transitions. Word has length 525 [2022-02-23 20:15:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:33,055 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18796 transitions. [2022-02-23 20:15:33,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18796 transitions. [2022-02-23 20:15:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-02-23 20:15:33,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:33,065 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:33,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-23 20:15:33,066 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:33,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:33,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-02-23 20:15:33,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:33,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622459788] [2022-02-23 20:15:33,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:33,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-02-23 20:15:33,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:33,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622459788] [2022-02-23 20:15:33,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622459788] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:33,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:33,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:33,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287876364] [2022-02-23 20:15:33,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:33,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:33,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:33,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:33,318 INFO L87 Difference]: Start difference. First operand 12622 states and 18796 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:36,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:37,759 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 [] [2022-02-23 20:15:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:38,831 INFO L93 Difference]: Finished difference Result 13543 states and 20010 transitions. [2022-02-23 20:15:38,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:38,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 546 [2022-02-23 20:15:38,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:38,844 INFO L225 Difference]: With dead ends: 13543 [2022-02-23 20:15:38,844 INFO L226 Difference]: Without dead ends: 13543 [2022-02-23 20:15:38,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:38,845 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:38,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 679 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 582 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:15:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-02-23 20:15:38,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-02-23 20:15:38,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4872790679242291) internal successors, (18765), 12617 states have internal predecessors, (18765), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18769 transitions. [2022-02-23 20:15:38,957 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18769 transitions. Word has length 546 [2022-02-23 20:15:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:38,957 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18769 transitions. [2022-02-23 20:15:38,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18769 transitions. [2022-02-23 20:15:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-02-23 20:15:39,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:39,022 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:39,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-23 20:15:39,022 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:39,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:39,022 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-02-23 20:15:39,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:39,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040322257] [2022-02-23 20:15:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:39,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:39,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-02-23 20:15:39,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:39,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040322257] [2022-02-23 20:15:39,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040322257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:39,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:39,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:39,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298445383] [2022-02-23 20:15:39,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:39,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:39,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:39,250 INFO L87 Difference]: Start difference. First operand 12622 states and 18769 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:40,619 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 [] [2022-02-23 20:15:43,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:44,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:44,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:44,817 INFO L93 Difference]: Finished difference Result 13435 states and 19832 transitions. [2022-02-23 20:15:44,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:44,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 547 [2022-02-23 20:15:44,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:44,829 INFO L225 Difference]: With dead ends: 13435 [2022-02-23 20:15:44,829 INFO L226 Difference]: Without dead ends: 13435 [2022-02-23 20:15:44,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:44,830 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 76 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:44,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 671 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 567 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:15:44,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13435 states. [2022-02-23 20:15:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13435 to 12622. [2022-02-23 20:15:44,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4851390980423238) internal successors, (18738), 12617 states have internal predecessors, (18738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18742 transitions. [2022-02-23 20:15:44,974 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18742 transitions. Word has length 547 [2022-02-23 20:15:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:44,974 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18742 transitions. [2022-02-23 20:15:44,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18742 transitions. [2022-02-23 20:15:44,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-02-23 20:15:44,985 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:44,986 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:44,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-23 20:15:44,986 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:44,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:44,987 INFO L85 PathProgramCache]: Analyzing trace with hash -811732947, now seen corresponding path program 1 times [2022-02-23 20:15:44,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:44,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006970805] [2022-02-23 20:15:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:44,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1131 proven. 34 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2022-02-23 20:15:45,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:45,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006970805] [2022-02-23 20:15:45,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006970805] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:45,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647031040] [2022-02-23 20:15:45,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:45,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:15:45,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:15:45,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:15:45,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-23 20:15:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:46,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-23 20:15:46,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:15:46,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:15:46,744 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-02-23 20:15:46,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-02-23 20:15:46,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 20:15:46,753 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-02-23 20:15:46,858 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-02-23 20:15:46,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2022-02-23 20:15:46,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-02-23 20:15:46,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:15:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2022-02-23 20:15:47,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-23 20:15:47,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647031040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:47,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-23 20:15:47,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-02-23 20:15:47,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679845804] [2022-02-23 20:15:47,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:47,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:15:47,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:47,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:15:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-23 20:15:47,034 INFO L87 Difference]: Start difference. First operand 12622 states and 18742 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:47,509 INFO L93 Difference]: Finished difference Result 13322 states and 19714 transitions. [2022-02-23 20:15:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:15:47,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 549 [2022-02-23 20:15:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:47,520 INFO L225 Difference]: With dead ends: 13322 [2022-02-23 20:15:47,520 INFO L226 Difference]: Without dead ends: 13322 [2022-02-23 20:15:47,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-02-23 20:15:47,521 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 66 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:47,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 689 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-23 20:15:47,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2022-02-23 20:15:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12776. [2022-02-23 20:15:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12776 states, 12771 states have (on average 1.4858664160989743) internal successors, (18976), 12771 states have internal predecessors, (18976), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:47,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12776 states to 12776 states and 18980 transitions. [2022-02-23 20:15:47,634 INFO L78 Accepts]: Start accepts. Automaton has 12776 states and 18980 transitions. Word has length 549 [2022-02-23 20:15:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:47,634 INFO L470 AbstractCegarLoop]: Abstraction has 12776 states and 18980 transitions. [2022-02-23 20:15:47,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 12776 states and 18980 transitions. [2022-02-23 20:15:47,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-02-23 20:15:47,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:47,645 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:47,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-23 20:15:47,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:15:47,846 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:47,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:47,846 INFO L85 PathProgramCache]: Analyzing trace with hash -802217617, now seen corresponding path program 1 times [2022-02-23 20:15:47,847 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:47,847 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388127928] [2022-02-23 20:15:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:47,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:48,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1096 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-02-23 20:15:48,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:48,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388127928] [2022-02-23 20:15:48,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388127928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:48,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:48,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:48,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607153328] [2022-02-23 20:15:48,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:48,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:48,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:48,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:48,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:48,047 INFO L87 Difference]: Start difference. First operand 12776 states and 18980 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:49,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:51,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:53,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:55,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:55,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:55,945 INFO L93 Difference]: Finished difference Result 12889 states and 19109 transitions. [2022-02-23 20:15:55,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:55,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 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 550 [2022-02-23 20:15:55,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:55,958 INFO L225 Difference]: With dead ends: 12889 [2022-02-23 20:15:55,958 INFO L226 Difference]: Without dead ends: 12889 [2022-02-23 20:15:55,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:15:55,958 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 36 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:55,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 630 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-23 20:15:55,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12889 states. [2022-02-23 20:15:56,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12889 to 12622. [2022-02-23 20:15:56,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.484029484029484) internal successors, (18724), 12617 states have internal predecessors, (18724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18728 transitions. [2022-02-23 20:15:56,070 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18728 transitions. Word has length 550 [2022-02-23 20:15:56,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:56,070 INFO L470 AbstractCegarLoop]: Abstraction has 12622 states and 18728 transitions. [2022-02-23 20:15:56,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18728 transitions. [2022-02-23 20:15:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-02-23 20:15:56,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:56,081 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:56,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-23 20:15:56,081 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:56,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:56,081 INFO L85 PathProgramCache]: Analyzing trace with hash 887619099, now seen corresponding path program 1 times [2022-02-23 20:15:56,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:56,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296497104] [2022-02-23 20:15:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:56,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:56,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1134 proven. 28 refuted. 0 times theorem prover too weak. 1717 trivial. 0 not checked. [2022-02-23 20:15:56,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:56,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296497104] [2022-02-23 20:15:56,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296497104] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:56,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908301944] [2022-02-23 20:15:56,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:56,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:15:56,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:15:56,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:15:56,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-23 20:15:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:57,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 23 conjunts are in the unsatisfiable core [2022-02-23 20:15:57,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:15:57,565 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:15:57,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:15:57,603 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:15:57,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:15:57,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:15:57,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-02-23 20:15:58,018 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-02-23 20:15:58,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 88 [2022-02-23 20:15:58,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:58,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-02-23 20:15:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:58,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-02-23 20:15:58,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2022-02-23 20:15:58,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:58,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-02-23 20:15:58,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:15:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1129 proven. 220 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-02-23 20:15:58,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:15:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-02-23 20:15:58,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908301944] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:58,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:15:58,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-02-23 20:15:58,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524340285] [2022-02-23 20:15:58,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:58,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:15:58,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:58,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:15:58,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-23 20:15:58,848 INFO L87 Difference]: Start difference. First operand 12622 states and 18728 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:59,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:00,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:00,159 INFO L93 Difference]: Finished difference Result 14348 states and 21107 transitions. [2022-02-23 20:16:00,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:16:00,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 552 [2022-02-23 20:16:00,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:00,171 INFO L225 Difference]: With dead ends: 14348 [2022-02-23 20:16:00,172 INFO L226 Difference]: Without dead ends: 14348 [2022-02-23 20:16:00,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-02-23 20:16:00,172 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 117 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:00,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 561 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-23 20:16:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2022-02-23 20:16:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 12636. [2022-02-23 20:16:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12631 states have (on average 1.4834929934288654) internal successors, (18738), 12631 states have internal predecessors, (18738), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:00,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 18742 transitions. [2022-02-23 20:16:00,278 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 18742 transitions. Word has length 552 [2022-02-23 20:16:00,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:00,279 INFO L470 AbstractCegarLoop]: Abstraction has 12636 states and 18742 transitions. [2022-02-23 20:16:00,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 18742 transitions. [2022-02-23 20:16:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-02-23 20:16:00,290 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:00,290 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:00,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-23 20:16:00,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:16:00,490 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:00,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-02-23 20:16:00,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:00,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377775741] [2022-02-23 20:16:00,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:00,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:01,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1595 proven. 356 refuted. 0 times theorem prover too weak. 938 trivial. 0 not checked. [2022-02-23 20:16:01,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:01,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377775741] [2022-02-23 20:16:01,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377775741] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:16:01,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791011436] [2022-02-23 20:16:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:01,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:16:01,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:16:01,016 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:16:01,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-23 20:16:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:02,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2549 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-23 20:16:02,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:16:02,254 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:16:02,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:16:02,542 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:16:02,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:16:02,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:02,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:16:02,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:16:02,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-23 20:16:02,680 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-23 20:16:02,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-02-23 20:16:02,803 INFO L356 Elim1Store]: treesize reduction 80, result has 35.0 percent of original size [2022-02-23 20:16:02,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 72 [2022-02-23 20:16:02,902 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:16:02,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-02-23 20:16:02,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:16:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1785 proven. 72 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-02-23 20:16:03,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:16:03,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-23 20:16:03,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-23 20:16:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-02-23 20:16:06,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791011436] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:16:06,519 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:16:06,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 9] total 18 [2022-02-23 20:16:06,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069246395] [2022-02-23 20:16:06,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:06,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:06,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:06,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:06,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=259, Unknown=1, NotChecked=0, Total=306 [2022-02-23 20:16:06,520 INFO L87 Difference]: Start difference. First operand 12636 states and 18742 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:06,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:06,678 INFO L93 Difference]: Finished difference Result 14526 states and 21621 transitions. [2022-02-23 20:16:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:06,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-02-23 20:16:06,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:06,698 INFO L225 Difference]: With dead ends: 14526 [2022-02-23 20:16:06,698 INFO L226 Difference]: Without dead ends: 14526 [2022-02-23 20:16:06,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 1107 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=52, Invalid=289, Unknown=1, NotChecked=0, Total=342 [2022-02-23 20:16:06,699 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 221 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:06,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 733 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 125 Unchecked, 0.1s Time] [2022-02-23 20:16:06,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14526 states. [2022-02-23 20:16:06,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14526 to 13651. [2022-02-23 20:16:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13651 states, 13646 states have (on average 1.496409204162392) internal successors, (20420), 13646 states have internal predecessors, (20420), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13651 states to 13651 states and 20424 transitions. [2022-02-23 20:16:06,888 INFO L78 Accepts]: Start accepts. Automaton has 13651 states and 20424 transitions. Word has length 553 [2022-02-23 20:16:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:06,889 INFO L470 AbstractCegarLoop]: Abstraction has 13651 states and 20424 transitions. [2022-02-23 20:16:06,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 13651 states and 20424 transitions. [2022-02-23 20:16:06,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-02-23 20:16:06,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:06,905 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:06,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-23 20:16:07,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-02-23 20:16:07,109 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:07,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:07,109 INFO L85 PathProgramCache]: Analyzing trace with hash 338088257, now seen corresponding path program 1 times [2022-02-23 20:16:07,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:07,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681838820] [2022-02-23 20:16:07,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:07,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:07,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1109 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-02-23 20:16:07,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:07,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681838820] [2022-02-23 20:16:07,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681838820] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:16:07,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:16:07,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:16:07,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499570517] [2022-02-23 20:16:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:16:07,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:16:07,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:16:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:16:07,420 INFO L87 Difference]: Start difference. First operand 13651 states and 20424 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:08,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:10,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:12,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:14,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:16:15,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:16:15,104 INFO L93 Difference]: Finished difference Result 15079 states and 22489 transitions. [2022-02-23 20:16:15,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:16:15,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 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 553 [2022-02-23 20:16:15,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:16:15,121 INFO L225 Difference]: With dead ends: 15079 [2022-02-23 20:16:15,122 INFO L226 Difference]: Without dead ends: 15079 [2022-02-23 20:16:15,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:16:15,122 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 38 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:16:15,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 631 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 514 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-02-23 20:16:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15079 states. [2022-02-23 20:16:15,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15079 to 14483. [2022-02-23 20:16:15,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14483 states, 14478 states have (on average 1.494750656167979) internal successors, (21641), 14478 states have internal predecessors, (21641), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14483 states to 14483 states and 21645 transitions. [2022-02-23 20:16:15,299 INFO L78 Accepts]: Start accepts. Automaton has 14483 states and 21645 transitions. Word has length 553 [2022-02-23 20:16:15,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:16:15,299 INFO L470 AbstractCegarLoop]: Abstraction has 14483 states and 21645 transitions. [2022-02-23 20:16:15,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 14483 states and 21645 transitions. [2022-02-23 20:16:15,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-02-23 20:16:15,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:16:15,315 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:16:15,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-23 20:16:15,315 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:16:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:16:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-02-23 20:16:15,317 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:16:15,317 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714754615] [2022-02-23 20:16:15,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:15,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:16:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:16:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1168 proven. 1526 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-02-23 20:16:16,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:16:16,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714754615] [2022-02-23 20:16:16,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714754615] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:16:16,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102694672] [2022-02-23 20:16:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:16:16,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:16:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:16:16,725 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:16:16,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-23 20:16:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:16:17,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 91 conjunts are in the unsatisfiable core [2022-02-23 20:16:17,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:16:18,030 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:16:18,030 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:16:18,131 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:16:18,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-23 20:16:18,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:16:18,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-23 20:16:18,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:18,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-23 20:16:18,586 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-23 20:16:18,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-23 20:16:18,593 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:16:18,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-23 20:16:19,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:16:19,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,079 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-23 20:16:19,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-23 20:16:19,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:16:19,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:16:19,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:16:19,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,161 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:16:19,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-23 20:16:19,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,783 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-23 20:16:19,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-23 20:16:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:19,819 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-23 20:16:19,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-23 20:16:19,862 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-23 20:16:19,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-23 20:16:22,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,238 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 270 [2022-02-23 20:16:22,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:22,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 276 [2022-02-23 20:16:22,293 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-23 20:16:22,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 336 treesize of output 355 [2022-02-23 20:16:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 253 [2022-02-23 20:16:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 259 [2022-02-23 20:16:26,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,330 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-23 20:16:26,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 317 [2022-02-23 20:16:26,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 159 [2022-02-23 20:16:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:16:26,679 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 93 [2022-02-23 20:16:26,726 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-02-23 20:16:26,727 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 121 treesize of output 149 [2022-02-23 20:16:26,836 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:16:26,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:16:26,965 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:16:26,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:16:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1210 proven. 480 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-02-23 20:16:27,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:16:32,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:16:32,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:16:32,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 816 treesize of output 714 [2022-02-23 20:16:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1341 proven. 141 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-02-23 20:16:32,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102694672] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:16:32,880 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:16:32,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 13] total 51 [2022-02-23 20:16:32,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478120692] [2022-02-23 20:16:32,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:16:32,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-23 20:16:32,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:16:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-23 20:16:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=2272, Unknown=0, NotChecked=0, Total=2550 [2022-02-23 20:16:32,882 INFO L87 Difference]: Start difference. First operand 14483 states and 21645 transitions. Second operand has 51 states, 51 states have (on average 16.15686274509804) internal successors, (824), 50 states have internal predecessors, (824), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:16:34,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:17:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:00,333 INFO L93 Difference]: Finished difference Result 59150 states and 86289 transitions. [2022-02-23 20:17:00,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-02-23 20:17:00,334 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 16.15686274509804) internal successors, (824), 50 states have internal predecessors, (824), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-02-23 20:17:00,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:00,403 INFO L225 Difference]: With dead ends: 59150 [2022-02-23 20:17:00,404 INFO L226 Difference]: Without dead ends: 59150 [2022-02-23 20:17:00,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1366 GetRequests, 1158 SyntacticMatches, 49 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12450 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=2275, Invalid=23485, Unknown=0, NotChecked=0, Total=25760 [2022-02-23 20:17:00,406 INFO L933 BasicCegarLoop]: 1238 mSDtfsCounter, 3926 mSDsluCounter, 21767 mSDsCounter, 0 mSdLazyCounter, 16862 mSolverCounterSat, 377 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3926 SdHoareTripleChecker+Valid, 23005 SdHoareTripleChecker+Invalid, 20956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 16862 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 3716 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:00,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3926 Valid, 23005 Invalid, 20956 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [377 Valid, 16862 Invalid, 1 Unknown, 3716 Unchecked, 15.6s Time] [2022-02-23 20:17:00,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59150 states. [2022-02-23 20:17:00,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59150 to 32250. [2022-02-23 20:17:00,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32250 states, 32245 states have (on average 1.502527523647077) internal successors, (48449), 32245 states have internal predecessors, (48449), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32250 states to 32250 states and 48453 transitions. [2022-02-23 20:17:00,937 INFO L78 Accepts]: Start accepts. Automaton has 32250 states and 48453 transitions. Word has length 553 [2022-02-23 20:17:00,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:00,938 INFO L470 AbstractCegarLoop]: Abstraction has 32250 states and 48453 transitions. [2022-02-23 20:17:00,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 16.15686274509804) internal successors, (824), 50 states have internal predecessors, (824), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 32250 states and 48453 transitions. [2022-02-23 20:17:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2022-02-23 20:17:00,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:00,968 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:00,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-23 20:17:01,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-02-23 20:17:01,169 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:01,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:01,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1578221284, now seen corresponding path program 1 times [2022-02-23 20:17:01,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:01,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943067862] [2022-02-23 20:17:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:01,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:01,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1392 proven. 338 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2022-02-23 20:17:01,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:01,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943067862] [2022-02-23 20:17:01,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943067862] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:17:01,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622476753] [2022-02-23 20:17:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:01,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:17:01,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:17:01,903 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:17:01,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-23 20:17:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:03,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 2576 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-23 20:17:03,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:17:03,271 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:17:03,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:17:03,527 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:03,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:17:03,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:03,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:17:03,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:17:03,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-23 20:17:03,658 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-02-23 20:17:03,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-02-23 20:17:03,765 INFO L356 Elim1Store]: treesize reduction 80, result has 35.0 percent of original size [2022-02-23 20:17:03,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 72 [2022-02-23 20:17:03,848 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:03,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-02-23 20:17:03,858 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:03,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-02-23 20:17:03,891 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:17:03,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:17:04,018 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:17:04,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:17:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1812 proven. 72 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2022-02-23 20:17:04,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:17:04,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-23 20:17:04,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-23 20:17:06,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-02-23 20:17:06,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622476753] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:17:06,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:17:06,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 10] total 24 [2022-02-23 20:17:06,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490601715] [2022-02-23 20:17:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:17:06,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:17:06,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:06,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:17:06,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=487, Unknown=1, NotChecked=0, Total=552 [2022-02-23 20:17:06,518 INFO L87 Difference]: Start difference. First operand 32250 states and 48453 transitions. Second operand has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:06,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:17:06,726 INFO L93 Difference]: Finished difference Result 36015 states and 54335 transitions. [2022-02-23 20:17:06,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:17:06,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 554 [2022-02-23 20:17:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:17:06,764 INFO L225 Difference]: With dead ends: 36015 [2022-02-23 20:17:06,764 INFO L226 Difference]: Without dead ends: 36015 [2022-02-23 20:17:06,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1109 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=528, Unknown=1, NotChecked=0, Total=600 [2022-02-23 20:17:06,765 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 222 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 126 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:17:06,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 733 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 126 Unchecked, 0.1s Time] [2022-02-23 20:17:06,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36015 states. [2022-02-23 20:17:06,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36015 to 33314. [2022-02-23 20:17:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33314 states, 33309 states have (on average 1.5125341499294485) internal successors, (50381), 33309 states have internal predecessors, (50381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:07,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33314 states to 33314 states and 50385 transitions. [2022-02-23 20:17:07,065 INFO L78 Accepts]: Start accepts. Automaton has 33314 states and 50385 transitions. Word has length 554 [2022-02-23 20:17:07,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:17:07,065 INFO L470 AbstractCegarLoop]: Abstraction has 33314 states and 50385 transitions. [2022-02-23 20:17:07,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.0) internal successors, (215), 5 states have internal predecessors, (215), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:07,065 INFO L276 IsEmpty]: Start isEmpty. Operand 33314 states and 50385 transitions. [2022-02-23 20:17:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2022-02-23 20:17:07,160 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:17:07,160 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:17:07,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-23 20:17:07,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:17:07,364 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:17:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:17:07,364 INFO L85 PathProgramCache]: Analyzing trace with hash 914054680, now seen corresponding path program 1 times [2022-02-23 20:17:07,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:17:07,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486824227] [2022-02-23 20:17:07,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:07,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:17:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:08,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:17:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 1195 proven. 1433 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-02-23 20:17:08,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:17:08,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486824227] [2022-02-23 20:17:08,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486824227] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:17:08,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651093665] [2022-02-23 20:17:08,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:17:08,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:17:08,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:17:08,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:17:08,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-23 20:17:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:17:10,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 2580 conjuncts, 94 conjunts are in the unsatisfiable core [2022-02-23 20:17:10,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:17:10,219 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:10,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:17:10,315 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-23 20:17:10,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-23 20:17:10,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-02-23 20:17:10,722 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:10,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:17:10,732 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:10,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:17:10,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:10,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-23 20:17:10,759 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-23 20:17:10,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-23 20:17:10,769 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:17:10,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-02-23 20:17:11,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-02-23 20:17:11,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,265 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-23 20:17:11,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-23 20:17:11,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:17:11,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,317 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-23 20:17:11,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,347 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-23 20:17:11,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-23 20:17:11,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-23 20:17:11,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,958 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-23 20:17:11,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-23 20:17:11,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:11,996 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-23 20:17:11,997 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-23 20:17:12,040 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-02-23 20:17:12,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-02-23 20:17:13,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 248 [2022-02-23 20:17:13,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:13,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 242 [2022-02-23 20:17:13,220 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-02-23 20:17:13,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 302 treesize of output 321 [2022-02-23 20:17:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,694 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 239 [2022-02-23 20:17:16,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 297 treesize of output 233 [2022-02-23 20:17:16,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,728 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-02-23 20:17:16,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 306 treesize of output 303 [2022-02-23 20:17:16,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 170 [2022-02-23 20:17:16,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:17:16,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 98 [2022-02-23 20:17:17,040 INFO L356 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-02-23 20:17:17,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 126 treesize of output 143 [2022-02-23 20:17:17,141 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-23 20:17:17,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-23 20:17:17,265 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:17:17,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-23 20:17:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 1212 proven. 482 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-02-23 20:17:17,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:17:26,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:17:26,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:17:26,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:17:26,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 824 treesize of output 662 [2022-02-23 20:17:26,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:17:26,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:17:26,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-23 20:17:26,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1094 treesize of output 938 [2022-02-23 20:17:42,780 INFO L356 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2022-02-23 20:17:42,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3306 treesize of output 1 [2022-02-23 20:17:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 1309 proven. 177 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-02-23 20:17:43,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651093665] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-23 20:17:43,128 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-23 20:17:43,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 15] total 50 [2022-02-23 20:17:43,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936594886] [2022-02-23 20:17:43,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-23 20:17:43,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-23 20:17:43,129 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:17:43,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-23 20:17:43,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=2166, Unknown=6, NotChecked=0, Total=2450 [2022-02-23 20:17:43,129 INFO L87 Difference]: Start difference. First operand 33314 states and 50385 transitions. Second operand has 50 states, 50 states have (on average 15.94) internal successors, (797), 49 states have internal predecessors, (797), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:17:45,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:22,387 INFO L93 Difference]: Finished difference Result 312963 states and 460061 transitions. [2022-02-23 20:19:22,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 496 states. [2022-02-23 20:19:22,388 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 15.94) internal successors, (797), 49 states have internal predecessors, (797), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 555 [2022-02-23 20:19:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:22,816 INFO L225 Difference]: With dead ends: 312963 [2022-02-23 20:19:22,816 INFO L226 Difference]: Without dead ends: 312671 [2022-02-23 20:19:22,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2100 GetRequests, 1502 SyntacticMatches, 75 SemanticMatches, 523 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132458 ImplicationChecksByTransitivity, 65.2s TimeCoverageRelationStatistics Valid=19399, Invalid=255694, Unknown=7, NotChecked=0, Total=275100 [2022-02-23 20:19:22,831 INFO L933 BasicCegarLoop]: 2161 mSDtfsCounter, 13296 mSDsluCounter, 51330 mSDsCounter, 0 mSdLazyCounter, 48700 mSolverCounterSat, 1983 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13296 SdHoareTripleChecker+Valid, 53491 SdHoareTripleChecker+Invalid, 69225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1983 IncrementalHoareTripleChecker+Valid, 48700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 18541 IncrementalHoareTripleChecker+Unchecked, 51.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:22,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13296 Valid, 53491 Invalid, 69225 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1983 Valid, 48700 Invalid, 1 Unknown, 18541 Unchecked, 51.7s Time] [2022-02-23 20:19:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312671 states. [2022-02-23 20:19:25,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312671 to 193813. [2022-02-23 20:19:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193813 states, 193808 states have (on average 1.4907382564187237) internal successors, (288917), 193808 states have internal predecessors, (288917), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193813 states to 193813 states and 288921 transitions. [2022-02-23 20:19:26,825 INFO L78 Accepts]: Start accepts. Automaton has 193813 states and 288921 transitions. Word has length 555 [2022-02-23 20:19:26,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:26,826 INFO L470 AbstractCegarLoop]: Abstraction has 193813 states and 288921 transitions. [2022-02-23 20:19:26,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 15.94) internal successors, (797), 49 states have internal predecessors, (797), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:26,826 INFO L276 IsEmpty]: Start isEmpty. Operand 193813 states and 288921 transitions. [2022-02-23 20:19:27,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-02-23 20:19:27,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:27,044 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:27,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-23 20:19:27,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2022-02-23 20:19:27,244 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 257473385, now seen corresponding path program 1 times [2022-02-23 20:19:27,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:27,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335991932] [2022-02-23 20:19:27,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:27,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:27,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 1352 proven. 184 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2022-02-23 20:19:27,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:27,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335991932] [2022-02-23 20:19:27,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335991932] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:27,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103651153] [2022-02-23 20:19:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:27,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:27,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:19:27,546 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:19:27,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-23 20:19:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:28,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-23 20:19:28,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:19:28,848 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:28,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:19:28,880 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:19:28,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:19:29,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-23 20:19:29,222 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:19:29,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-23 20:19:29,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:19:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 1302 proven. 176 refuted. 0 times theorem prover too weak. 1381 trivial. 0 not checked. [2022-02-23 20:19:29,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:19:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-02-23 20:19:29,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103651153] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:19:29,948 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:19:29,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-02-23 20:19:29,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046213969] [2022-02-23 20:19:29,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:29,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:19:29,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:29,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:19:29,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-23 20:19:29,949 INFO L87 Difference]: Start difference. First operand 193813 states and 288921 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:31,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:32,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:32,363 INFO L93 Difference]: Finished difference Result 203050 states and 298636 transitions. [2022-02-23 20:19:32,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:19:32,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 556 [2022-02-23 20:19:32,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:32,725 INFO L225 Difference]: With dead ends: 203050 [2022-02-23 20:19:32,725 INFO L226 Difference]: Without dead ends: 203050 [2022-02-23 20:19:32,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1122 GetRequests, 1113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-23 20:19:32,727 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 130 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:32,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 408 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-23 20:19:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203050 states. [2022-02-23 20:19:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203050 to 193813. [2022-02-23 20:19:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193813 states, 193808 states have (on average 1.4742735078015354) internal successors, (285726), 193808 states have internal predecessors, (285726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193813 states to 193813 states and 285730 transitions. [2022-02-23 20:19:35,081 INFO L78 Accepts]: Start accepts. Automaton has 193813 states and 285730 transitions. Word has length 556 [2022-02-23 20:19:35,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:35,081 INFO L470 AbstractCegarLoop]: Abstraction has 193813 states and 285730 transitions. [2022-02-23 20:19:35,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 193813 states and 285730 transitions. [2022-02-23 20:19:35,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-02-23 20:19:35,212 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:35,212 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:35,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-23 20:19:35,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:19:35,415 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:35,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:35,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1640350642, now seen corresponding path program 1 times [2022-02-23 20:19:35,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:35,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898656578] [2022-02-23 20:19:35,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:35,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2869 backedges. 1317 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-02-23 20:19:35,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:35,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898656578] [2022-02-23 20:19:35,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898656578] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:35,739 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:35,739 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:35,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772161173] [2022-02-23 20:19:35,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:35,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:35,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:35,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:35,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:35,740 INFO L87 Difference]: Start difference. First operand 193813 states and 285730 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:37,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:39,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:40,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:41,659 INFO L93 Difference]: Finished difference Result 198610 states and 291405 transitions. [2022-02-23 20:19:41,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:41,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 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 557 [2022-02-23 20:19:41,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:41,894 INFO L225 Difference]: With dead ends: 198610 [2022-02-23 20:19:41,895 INFO L226 Difference]: Without dead ends: 198610 [2022-02-23 20:19:41,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:41,895 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 59 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:41,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 659 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-02-23 20:19:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198610 states. [2022-02-23 20:19:43,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198610 to 193813. [2022-02-23 20:19:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193813 states, 193808 states have (on average 1.4730454883183357) internal successors, (285488), 193808 states have internal predecessors, (285488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193813 states to 193813 states and 285492 transitions. [2022-02-23 20:19:44,212 INFO L78 Accepts]: Start accepts. Automaton has 193813 states and 285492 transitions. Word has length 557 [2022-02-23 20:19:44,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:44,212 INFO L470 AbstractCegarLoop]: Abstraction has 193813 states and 285492 transitions. [2022-02-23 20:19:44,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 193813 states and 285492 transitions. [2022-02-23 20:19:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-02-23 20:19:44,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:44,572 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:44,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-23 20:19:44,572 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:44,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:44,573 INFO L85 PathProgramCache]: Analyzing trace with hash 153813677, now seen corresponding path program 1 times [2022-02-23 20:19:44,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:44,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695680209] [2022-02-23 20:19:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:44,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 1093 proven. 0 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2022-02-23 20:19:44,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:44,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695680209] [2022-02-23 20:19:44,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695680209] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:44,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:44,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:44,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755021854] [2022-02-23 20:19:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:44,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:44,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:44,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:44,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:44,802 INFO L87 Difference]: Start difference. First operand 193813 states and 285492 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:46,702 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 [] [2022-02-23 20:19:48,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:50,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:51,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:19:52,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:19:52,327 INFO L93 Difference]: Finished difference Result 201920 states and 296147 transitions. [2022-02-23 20:19:52,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:19:52,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 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 557 [2022-02-23 20:19:52,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:19:52,715 INFO L225 Difference]: With dead ends: 201920 [2022-02-23 20:19:52,715 INFO L226 Difference]: Without dead ends: 201920 [2022-02-23 20:19:52,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:19:52,716 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 14 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:19:52,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 601 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-02-23 20:19:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201920 states. [2022-02-23 20:19:54,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201920 to 199945. [2022-02-23 20:19:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199945 states, 199940 states have (on average 1.4687606281884564) internal successors, (293664), 199940 states have internal predecessors, (293664), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:55,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199945 states to 199945 states and 293668 transitions. [2022-02-23 20:19:55,158 INFO L78 Accepts]: Start accepts. Automaton has 199945 states and 293668 transitions. Word has length 557 [2022-02-23 20:19:55,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:19:55,158 INFO L470 AbstractCegarLoop]: Abstraction has 199945 states and 293668 transitions. [2022-02-23 20:19:55,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 199945 states and 293668 transitions. [2022-02-23 20:19:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-02-23 20:19:55,325 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:19:55,325 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:19:55,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-23 20:19:55,325 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:19:55,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:19:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1438775020, now seen corresponding path program 1 times [2022-02-23 20:19:55,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:19:55,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411723692] [2022-02-23 20:19:55,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:19:55,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:19:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:55,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:19:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:19:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2922 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-02-23 20:19:55,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:19:55,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411723692] [2022-02-23 20:19:55,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411723692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:19:55,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:19:55,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:19:55,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910087401] [2022-02-23 20:19:55,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:19:55,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:19:55,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:19:55,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:19:55,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:19:55,764 INFO L87 Difference]: Start difference. First operand 199945 states and 293668 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:19:58,125 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 [] [2022-02-23 20:20:00,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:01,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:01,141 INFO L93 Difference]: Finished difference Result 208015 states and 303819 transitions. [2022-02-23 20:20:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:01,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 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 558 [2022-02-23 20:20:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:01,396 INFO L225 Difference]: With dead ends: 208015 [2022-02-23 20:20:01,396 INFO L226 Difference]: Without dead ends: 208015 [2022-02-23 20:20:01,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:20:01,396 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 53 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:01,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 662 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 547 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-23 20:20:01,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208015 states. [2022-02-23 20:20:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208015 to 199945. [2022-02-23 20:20:03,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199945 states, 199940 states have (on average 1.4670251075322598) internal successors, (293317), 199940 states have internal predecessors, (293317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199945 states to 199945 states and 293321 transitions. [2022-02-23 20:20:04,134 INFO L78 Accepts]: Start accepts. Automaton has 199945 states and 293321 transitions. Word has length 558 [2022-02-23 20:20:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:04,134 INFO L470 AbstractCegarLoop]: Abstraction has 199945 states and 293321 transitions. [2022-02-23 20:20:04,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 199945 states and 293321 transitions. [2022-02-23 20:20:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-02-23 20:20:04,271 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:04,271 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:04,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-23 20:20:04,271 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:04,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:04,271 INFO L85 PathProgramCache]: Analyzing trace with hash -91971243, now seen corresponding path program 1 times [2022-02-23 20:20:04,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:04,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049601778] [2022-02-23 20:20:04,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:04,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 1121 proven. 0 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2022-02-23 20:20:04,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:04,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049601778] [2022-02-23 20:20:04,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049601778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:20:04,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:20:04,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:20:04,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868958308] [2022-02-23 20:20:04,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:04,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:20:04,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:04,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:20:04,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:20:04,672 INFO L87 Difference]: Start difference. First operand 199945 states and 293321 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:07,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:09,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:10,805 INFO L93 Difference]: Finished difference Result 219539 states and 320881 transitions. [2022-02-23 20:20:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 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 559 [2022-02-23 20:20:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:11,076 INFO L225 Difference]: With dead ends: 219539 [2022-02-23 20:20:11,077 INFO L226 Difference]: Without dead ends: 219539 [2022-02-23 20:20:11,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:20:11,077 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 48 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:11,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 653 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 533 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:20:11,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219539 states. [2022-02-23 20:20:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219539 to 211784. [2022-02-23 20:20:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211784 states, 211779 states have (on average 1.466146312901657) internal successors, (310499), 211779 states have internal predecessors, (310499), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211784 states to 211784 states and 310503 transitions. [2022-02-23 20:20:13,818 INFO L78 Accepts]: Start accepts. Automaton has 211784 states and 310503 transitions. Word has length 559 [2022-02-23 20:20:13,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:13,819 INFO L470 AbstractCegarLoop]: Abstraction has 211784 states and 310503 transitions. [2022-02-23 20:20:13,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 211784 states and 310503 transitions. [2022-02-23 20:20:14,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-02-23 20:20:14,250 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:14,250 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:14,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-23 20:20:14,250 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:14,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1411384554, now seen corresponding path program 1 times [2022-02-23 20:20:14,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:14,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780308181] [2022-02-23 20:20:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:14,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1507 proven. 496 refuted. 0 times theorem prover too weak. 940 trivial. 0 not checked. [2022-02-23 20:20:14,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:14,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780308181] [2022-02-23 20:20:14,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780308181] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:20:14,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448958348] [2022-02-23 20:20:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:20:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:20:14,904 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-23 20:20:14,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-23 20:20:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:16,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-23 20:20:16,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:20:16,279 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-23 20:20:16,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-23 20:20:16,318 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-23 20:20:16,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:20:16,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-23 20:20:16,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-02-23 20:20:16,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-02-23 20:20:16,626 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-02-23 20:20:16,627 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-02-23 20:20:16,681 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-02-23 20:20:16,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-02-23 20:20:16,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-23 20:20:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1569 proven. 160 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-02-23 20:20:17,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-23 20:20:17,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2022-02-23 20:20:17,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-02-23 20:20:18,105 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_184 Int) (v_arrayElimCell_183 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_183 (store (select |c_#memory_int| v_arrayElimCell_183) (+ v_arrayElimCell_184 844) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8609))) is different from false [2022-02-23 20:20:18,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1574 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2022-02-23 20:20:18,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448958348] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-23 20:20:18,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-23 20:20:18,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16, 9] total 26 [2022-02-23 20:20:18,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281413249] [2022-02-23 20:20:18,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:18,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:20:18,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:18,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:20:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=523, Unknown=1, NotChecked=46, Total=650 [2022-02-23 20:20:18,364 INFO L87 Difference]: Start difference. First operand 211784 states and 310503 transitions. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:20,232 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_arrayElimCell_184 Int) (v_arrayElimCell_183 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_183 (store (select |c_#memory_int| v_arrayElimCell_183) (+ v_arrayElimCell_184 844) 8640)) c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8609))) (not (= (select (select |c_#memory_int| c_ssl3_accept_~s.base) (+ 52 c_ssl3_accept_~s.offset)) 8609))) is different from false [2022-02-23 20:20:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:20,810 INFO L93 Difference]: Finished difference Result 221873 states and 323287 transitions. [2022-02-23 20:20:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 560 [2022-02-23 20:20:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:21,251 INFO L225 Difference]: With dead ends: 221873 [2022-02-23 20:20:21,252 INFO L226 Difference]: Without dead ends: 221873 [2022-02-23 20:20:21,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 1119 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=87, Invalid=569, Unknown=2, NotChecked=98, Total=756 [2022-02-23 20:20:21,252 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 271 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 272 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:21,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 540 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 241 Invalid, 0 Unknown, 272 Unchecked, 1.1s Time] [2022-02-23 20:20:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221873 states. [2022-02-23 20:20:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221873 to 211073. [2022-02-23 20:20:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211073 states, 211068 states have (on average 1.4621164743115962) internal successors, (308606), 211068 states have internal predecessors, (308606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211073 states to 211073 states and 308610 transitions. [2022-02-23 20:20:23,883 INFO L78 Accepts]: Start accepts. Automaton has 211073 states and 308610 transitions. Word has length 560 [2022-02-23 20:20:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:23,884 INFO L470 AbstractCegarLoop]: Abstraction has 211073 states and 308610 transitions. [2022-02-23 20:20:23,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand 211073 states and 308610 transitions. [2022-02-23 20:20:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-02-23 20:20:24,024 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:24,024 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:24,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-23 20:20:24,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-02-23 20:20:24,225 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:24,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:24,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1373560917, now seen corresponding path program 1 times [2022-02-23 20:20:24,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:24,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303393506] [2022-02-23 20:20:24,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:24,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1574 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2022-02-23 20:20:24,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:24,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303393506] [2022-02-23 20:20:24,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303393506] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:20:24,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:20:24,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-23 20:20:24,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519429801] [2022-02-23 20:20:24,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:24,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-23 20:20:24,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:24,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-23 20:20:24,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:20:24,748 INFO L87 Difference]: Start difference. First operand 211073 states and 308610 transitions. Second operand has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:26,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:28,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:30,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:32,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:34,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:36,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:36,050 INFO L93 Difference]: Finished difference Result 233232 states and 338752 transitions. [2022-02-23 20:20:36,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-23 20:20:36,051 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 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 560 [2022-02-23 20:20:36,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:36,346 INFO L225 Difference]: With dead ends: 233232 [2022-02-23 20:20:36,346 INFO L226 Difference]: Without dead ends: 233232 [2022-02-23 20:20:36,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-02-23 20:20:36,346 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 359 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 39 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:36,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 1264 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1422 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-02-23 20:20:36,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233232 states. [2022-02-23 20:20:38,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233232 to 207207. [2022-02-23 20:20:38,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207207 states, 207202 states have (on average 1.462104612889837) internal successors, (302951), 207202 states have internal predecessors, (302951), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:39,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207207 states to 207207 states and 302955 transitions. [2022-02-23 20:20:39,373 INFO L78 Accepts]: Start accepts. Automaton has 207207 states and 302955 transitions. Word has length 560 [2022-02-23 20:20:39,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:39,373 INFO L470 AbstractCegarLoop]: Abstraction has 207207 states and 302955 transitions. [2022-02-23 20:20:39,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 207207 states and 302955 transitions. [2022-02-23 20:20:39,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2022-02-23 20:20:39,522 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:39,526 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:39,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-23 20:20:39,527 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:39,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:39,527 INFO L85 PathProgramCache]: Analyzing trace with hash -784936697, now seen corresponding path program 1 times [2022-02-23 20:20:39,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:39,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768258776] [2022-02-23 20:20:39,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:39,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3006 backedges. 1404 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2022-02-23 20:20:39,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:39,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768258776] [2022-02-23 20:20:39,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768258776] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:20:39,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:20:39,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:20:39,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228589062] [2022-02-23 20:20:39,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:39,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:20:39,766 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:39,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:20:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:20:39,767 INFO L87 Difference]: Start difference. First operand 207207 states and 302955 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:40,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:42,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:44,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:46,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:47,496 INFO L93 Difference]: Finished difference Result 211291 states and 307827 transitions. [2022-02-23 20:20:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 563 [2022-02-23 20:20:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:47,750 INFO L225 Difference]: With dead ends: 211291 [2022-02-23 20:20:47,751 INFO L226 Difference]: Without dead ends: 211291 [2022-02-23 20:20:47,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:20:47,751 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 64 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:47,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 649 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-23 20:20:47,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211291 states. [2022-02-23 20:20:49,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211291 to 207207. [2022-02-23 20:20:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207207 states, 207202 states have (on average 1.4609608015366646) internal successors, (302714), 207202 states have internal predecessors, (302714), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:50,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207207 states to 207207 states and 302718 transitions. [2022-02-23 20:20:50,329 INFO L78 Accepts]: Start accepts. Automaton has 207207 states and 302718 transitions. Word has length 563 [2022-02-23 20:20:50,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:20:50,329 INFO L470 AbstractCegarLoop]: Abstraction has 207207 states and 302718 transitions. [2022-02-23 20:20:50,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:50,329 INFO L276 IsEmpty]: Start isEmpty. Operand 207207 states and 302718 transitions. [2022-02-23 20:20:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2022-02-23 20:20:50,471 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:20:50,472 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:20:50,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-23 20:20:50,472 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:20:50,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:20:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1863958088, now seen corresponding path program 1 times [2022-02-23 20:20:50,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:20:50,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194261818] [2022-02-23 20:20:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:20:50,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:20:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:20:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:20:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3021 backedges. 1419 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2022-02-23 20:20:50,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:20:50,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194261818] [2022-02-23 20:20:50,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194261818] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:20:50,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:20:50,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:20:50,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605559849] [2022-02-23 20:20:50,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:20:50,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:20:50,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:20:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:20:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:20:50,963 INFO L87 Difference]: Start difference. First operand 207207 states and 302718 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:20:53,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:55,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:56,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:20:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:20:57,445 INFO L93 Difference]: Finished difference Result 211291 states and 307590 transitions. [2022-02-23 20:20:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:20:57,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 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 564 [2022-02-23 20:20:57,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:20:57,691 INFO L225 Difference]: With dead ends: 211291 [2022-02-23 20:20:57,691 INFO L226 Difference]: Without dead ends: 211291 [2022-02-23 20:20:57,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:20:57,692 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 62 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:20:57,693 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 647 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-23 20:20:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211291 states. [2022-02-23 20:20:59,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211291 to 207207. [2022-02-23 20:20:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207207 states, 207202 states have (on average 1.4598169901834925) internal successors, (302477), 207202 states have internal predecessors, (302477), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:21:00,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207207 states to 207207 states and 302481 transitions. [2022-02-23 20:21:00,304 INFO L78 Accepts]: Start accepts. Automaton has 207207 states and 302481 transitions. Word has length 564 [2022-02-23 20:21:00,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:21:00,304 INFO L470 AbstractCegarLoop]: Abstraction has 207207 states and 302481 transitions. [2022-02-23 20:21:00,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 4 states have internal predecessors, (199), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:21:00,304 INFO L276 IsEmpty]: Start isEmpty. Operand 207207 states and 302481 transitions. [2022-02-23 20:21:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-02-23 20:21:00,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:21:00,442 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:21:00,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-23 20:21:00,442 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:21:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:21:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1151583762, now seen corresponding path program 1 times [2022-02-23 20:21:00,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:21:00,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970445077] [2022-02-23 20:21:00,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:21:00,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:21:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:21:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:21:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:21:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 1434 proven. 0 refuted. 0 times theorem prover too weak. 1602 trivial. 0 not checked. [2022-02-23 20:21:00,885 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:21:00,885 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970445077] [2022-02-23 20:21:00,885 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970445077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:21:00,885 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:21:00,885 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:21:00,885 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611614878] [2022-02-23 20:21:00,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:21:00,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:21:00,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:21:00,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:21:00,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:21:00,886 INFO L87 Difference]: Start difference. First operand 207207 states and 302481 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:21:02,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:04,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:06,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:21:07,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:21:07,127 INFO L93 Difference]: Finished difference Result 210562 states and 306480 transitions. [2022-02-23 20:21:07,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:21:07,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 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 565 [2022-02-23 20:21:07,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:21:07,375 INFO L225 Difference]: With dead ends: 210562 [2022-02-23 20:21:07,375 INFO L226 Difference]: Without dead ends: 210562 [2022-02-23 20:21:07,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:21:07,375 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 58 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:21:07,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 641 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-02-23 20:21:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210562 states.