/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.06.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:08:27,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:08:27,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:08:27,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:08:27,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:08:27,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:08:27,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:08:27,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:08:27,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:08:27,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:08:27,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:08:27,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:08:27,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:08:27,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:08:27,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:08:27,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:08:27,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:08:27,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:08:27,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:08:27,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:08:27,104 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:08:27,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:08:27,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:08:27,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:08:27,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:08:27,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 21:08:27,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 21:08:27,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 21:08:27,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 21:08:27,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 21:08:27,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 21:08:27,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 21:08:27,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 21:08:27,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 21:08:27,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 21:08:27,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 21:08:27,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 21:08:27,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 21:08:27,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 21:08:27,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:08:27,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:08:27,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:08:27,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:08:27,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:08:27,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:08:27,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:08:27,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:08:27,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:08:27,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:08:27,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:08:27,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:08:27,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:08:27,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:08:27,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:08:27,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:08:27,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:08:27,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:08:27,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:08:27,140 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:08:27,140 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:08:27,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:08:27,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:08:27,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:08:27,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:08:27,403 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:08:27,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-18 21:08:27,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c224298/53caaadc366b4b899baee8651b53570b/FLAG79476409a [2022-03-18 21:08:27,956 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:08:27,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-1.c [2022-03-18 21:08:27,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c224298/53caaadc366b4b899baee8651b53570b/FLAG79476409a [2022-03-18 21:08:28,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47c224298/53caaadc366b4b899baee8651b53570b [2022-03-18 21:08:28,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:08:28,482 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:08:28,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:08:28,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:08:28,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:08:28,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:08:28" (1/1) ... [2022-03-18 21:08:28,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63f4d187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:28, skipping insertion in model container [2022-03-18 21:08:28,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:08:28" (1/1) ... [2022-03-18 21:08:28,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:08:28,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:08:28,927 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.06.i.cil-1.c[78520,78533] [2022-03-18 21:08:28,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:08:28,956 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:08:29,066 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.06.i.cil-1.c[78520,78533] [2022-03-18 21:08:29,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:08:29,102 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:08:29,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29 WrapperNode [2022-03-18 21:08:29,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:08:29,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:08:29,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:08:29,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:08:29,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:08:29,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:08:29,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:08:29,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:08:29,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (1/1) ... [2022-03-18 21:08:29,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:08:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:08:29,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-18 21:08:29,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-18 21:08:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:08:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:08:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:08:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 21:08:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 21:08:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:08:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 21:08:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:08:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:08:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:08:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:08:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:08:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:08:29,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:08:29,326 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:08:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:08:29,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:08:29,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:08:29,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:08:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:08:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:08:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:08:29,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:08:29,497 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:08:29,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:08:30,223 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:08:30,684 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 21:08:30,684 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 21:08:30,695 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:08:30,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:08:30,702 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:08:30,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:08:30 BoogieIcfgContainer [2022-03-18 21:08:30,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:08:30,705 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:08:30,705 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:08:30,706 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:08:30,708 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:08:30" (1/1) ... [2022-03-18 21:08:30,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:08:30 BasicIcfg [2022-03-18 21:08:30,748 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:08:30,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:08:30,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:08:30,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:08:30,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:08:28" (1/4) ... [2022-03-18 21:08:30,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:08:30, skipping insertion in model container [2022-03-18 21:08:30,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:08:29" (2/4) ... [2022-03-18 21:08:30,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:08:30, skipping insertion in model container [2022-03-18 21:08:30,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:08:30" (3/4) ... [2022-03-18 21:08:30,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d55361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:08:30, skipping insertion in model container [2022-03-18 21:08:30,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:08:30" (4/4) ... [2022-03-18 21:08:30,754 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-1.cJordan [2022-03-18 21:08:30,759 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:08:30,759 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:08:30,831 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:08:30,836 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-18 21:08:30,837 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:08:30,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 21:08:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-18 21:08:30,881 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:30,882 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:30,882 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:30,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1558367979, now seen corresponding path program 1 times [2022-03-18 21:08:30,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:30,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259444816] [2022-03-18 21:08:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:30,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:31,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:08:31,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:31,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259444816] [2022-03-18 21:08:31,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259444816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:31,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:31,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:31,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659526265] [2022-03-18 21:08:31,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:31,428 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:31,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:31,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:31,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:31,451 INFO L87 Difference]: Start difference. First operand has 169 states, 161 states have (on average 1.7267080745341614) internal successors, (278), 162 states have internal predecessors, (278), 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 9.4) 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) [2022-03-18 21:08:34,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:34,319 INFO L93 Difference]: Finished difference Result 307 states and 517 transitions. [2022-03-18 21:08:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:34,323 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 [2022-03-18 21:08:34,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:34,337 INFO L225 Difference]: With dead ends: 307 [2022-03-18 21:08:34,337 INFO L226 Difference]: Without dead ends: 281 [2022-03-18 21:08:34,339 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:34,342 INFO L912 BasicCegarLoop]: 180 mSDtfsCounter, 172 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:34,342 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 529 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:08:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-03-18 21:08:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 193. [2022-03-18 21:08:34,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 188 states have (on average 1.627659574468085) internal successors, (306), 188 states have internal predecessors, (306), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2022-03-18 21:08:34,393 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 51 [2022-03-18 21:08:34,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:34,393 INFO L478 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2022-03-18 21:08:34,394 INFO L479 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) [2022-03-18 21:08:34,394 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2022-03-18 21:08:34,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-18 21:08:34,395 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:34,396 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:08:34,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:08:34,396 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:34,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:34,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1445274745, now seen corresponding path program 1 times [2022-03-18 21:08:34,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:34,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255030145] [2022-03-18 21:08:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:34,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:34,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:34,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:08:34,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:34,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255030145] [2022-03-18 21:08:34,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255030145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:34,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:34,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:34,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853163941] [2022-03-18 21:08:34,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:34,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:34,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:34,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:34,556 INFO L87 Difference]: Start difference. First operand 193 states and 310 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:37,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:39,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:41,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:42,022 INFO L93 Difference]: Finished difference Result 221 states and 350 transitions. [2022-03-18 21:08:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:42,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-18 21:08:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:42,024 INFO L225 Difference]: With dead ends: 221 [2022-03-18 21:08:42,024 INFO L226 Difference]: Without dead ends: 221 [2022-03-18 21:08:42,024 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:42,025 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 22 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:42,026 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-18 21:08:42,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-18 21:08:42,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-03-18 21:08:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6331658291457287) internal successors, (325), 199 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:42,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 329 transitions. [2022-03-18 21:08:42,035 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 329 transitions. Word has length 52 [2022-03-18 21:08:42,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:42,036 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 329 transitions. [2022-03-18 21:08:42,036 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 329 transitions. [2022-03-18 21:08:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:08:42,038 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:42,038 INFO L500 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, 1] [2022-03-18 21:08:42,038 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:08:42,038 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:42,039 INFO L85 PathProgramCache]: Analyzing trace with hash 326764794, now seen corresponding path program 1 times [2022-03-18 21:08:42,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:42,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756657106] [2022-03-18 21:08:42,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:42,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:08:42,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:42,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756657106] [2022-03-18 21:08:42,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756657106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:42,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:42,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:42,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108318253] [2022-03-18 21:08:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:42,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:42,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:42,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:42,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:42,182 INFO L87 Difference]: Start difference. First operand 204 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:43,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:45,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:47,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:48,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:48,207 INFO L93 Difference]: Finished difference Result 221 states and 349 transitions. [2022-03-18 21:08:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:48,207 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 [2022-03-18 21:08:48,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:48,209 INFO L225 Difference]: With dead ends: 221 [2022-03-18 21:08:48,209 INFO L226 Difference]: Without dead ends: 221 [2022-03-18 21:08:48,209 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:48,210 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 24 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:48,211 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 549 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-18 21:08:48,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-18 21:08:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 204. [2022-03-18 21:08:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6281407035175879) internal successors, (324), 199 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 328 transitions. [2022-03-18 21:08:48,226 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 328 transitions. Word has length 65 [2022-03-18 21:08:48,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:48,227 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 328 transitions. [2022-03-18 21:08:48,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:48,227 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 328 transitions. [2022-03-18 21:08:48,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:08:48,229 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:48,229 INFO L500 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, 1] [2022-03-18 21:08:48,229 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:08:48,229 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:48,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:48,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1636949139, now seen corresponding path program 1 times [2022-03-18 21:08:48,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:48,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085632767] [2022-03-18 21:08:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:08:48,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:48,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085632767] [2022-03-18 21:08:48,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085632767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:48,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:48,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:48,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56401376] [2022-03-18 21:08:48,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:48,448 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:48,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:48,450 INFO L87 Difference]: Start difference. First operand 204 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:50,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:52,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:52,000 INFO L93 Difference]: Finished difference Result 220 states and 347 transitions. [2022-03-18 21:08:52,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:52,001 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 [2022-03-18 21:08:52,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:52,002 INFO L225 Difference]: With dead ends: 220 [2022-03-18 21:08:52,002 INFO L226 Difference]: Without dead ends: 220 [2022-03-18 21:08:52,003 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:52,004 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 28 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:52,004 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 551 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 21:08:52,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-03-18 21:08:52,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 204. [2022-03-18 21:08:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 199 states have (on average 1.6231155778894473) internal successors, (323), 199 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 327 transitions. [2022-03-18 21:08:52,011 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 327 transitions. Word has length 66 [2022-03-18 21:08:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:52,016 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 327 transitions. [2022-03-18 21:08:52,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:52,017 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 327 transitions. [2022-03-18 21:08:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:08:52,019 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:52,020 INFO L500 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, 1] [2022-03-18 21:08:52,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:08:52,020 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:52,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1388649651, now seen corresponding path program 1 times [2022-03-18 21:08:52,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:52,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58141036] [2022-03-18 21:08:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:52,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:52,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:08:52,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:52,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58141036] [2022-03-18 21:08:52,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58141036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:52,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:52,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:52,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987855624] [2022-03-18 21:08:52,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:52,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:52,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:52,189 INFO L87 Difference]: Start difference. First operand 204 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:55,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:56,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:58,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:08:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:08:59,500 INFO L93 Difference]: Finished difference Result 331 states and 526 transitions. [2022-03-18 21:08:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:08:59,500 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 [2022-03-18 21:08:59,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:08:59,502 INFO L225 Difference]: With dead ends: 331 [2022-03-18 21:08:59,502 INFO L226 Difference]: Without dead ends: 331 [2022-03-18 21:08:59,503 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:08:59,503 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 167 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:08:59,504 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 410 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-18 21:08:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-18 21:08:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 216. [2022-03-18 21:08:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 211 states have internal predecessors, (339), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 343 transitions. [2022-03-18 21:08:59,511 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 343 transitions. Word has length 66 [2022-03-18 21:08:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:08:59,512 INFO L478 AbstractCegarLoop]: Abstraction has 216 states and 343 transitions. [2022-03-18 21:08:59,512 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:08:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 343 transitions. [2022-03-18 21:08:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:08:59,513 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:08:59,513 INFO L500 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, 1] [2022-03-18 21:08:59,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:08:59,513 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:08:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:08:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash -931919629, now seen corresponding path program 1 times [2022-03-18 21:08:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:08:59,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457649917] [2022-03-18 21:08:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:08:59,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:08:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:08:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:08:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:08:59,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:08:59,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457649917] [2022-03-18 21:08:59,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457649917] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:08:59,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:08:59,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:08:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464013905] [2022-03-18 21:08:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:08:59,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:08:59,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:08:59,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:08:59,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:08:59,652 INFO L87 Difference]: Start difference. First operand 216 states and 343 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:01,485 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 [] [2022-03-18 21:09:03,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:03,447 INFO L93 Difference]: Finished difference Result 331 states and 523 transitions. [2022-03-18 21:09:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:03,448 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 [2022-03-18 21:09:03,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:03,450 INFO L225 Difference]: With dead ends: 331 [2022-03-18 21:09:03,450 INFO L226 Difference]: Without dead ends: 331 [2022-03-18 21:09:03,450 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:03,451 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 161 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:03,451 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 410 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-18 21:09:03,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-03-18 21:09:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 221. [2022-03-18 21:09:03,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.6018518518518519) internal successors, (346), 216 states have internal predecessors, (346), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:03,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 350 transitions. [2022-03-18 21:09:03,459 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 350 transitions. Word has length 66 [2022-03-18 21:09:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:03,459 INFO L478 AbstractCegarLoop]: Abstraction has 221 states and 350 transitions. [2022-03-18 21:09:03,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 350 transitions. [2022-03-18 21:09:03,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:09:03,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:03,461 INFO L500 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, 1] [2022-03-18 21:09:03,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:09:03,461 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:03,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash -707330029, now seen corresponding path program 1 times [2022-03-18 21:09:03,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:03,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472731528] [2022-03-18 21:09:03,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:03,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:03,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:03,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472731528] [2022-03-18 21:09:03,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472731528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:03,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:03,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:03,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18083112] [2022-03-18 21:09:03,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:03,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:03,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:03,597 INFO L87 Difference]: Start difference. First operand 221 states and 350 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:07,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:07,753 INFO L93 Difference]: Finished difference Result 330 states and 519 transitions. [2022-03-18 21:09:07,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:07,754 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 [2022-03-18 21:09:07,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:07,755 INFO L225 Difference]: With dead ends: 330 [2022-03-18 21:09:07,755 INFO L226 Difference]: Without dead ends: 330 [2022-03-18 21:09:07,756 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:07,756 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 159 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:07,757 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 497 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 21:09:07,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-18 21:09:07,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-03-18 21:09:07,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5898617511520738) internal successors, (345), 217 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 349 transitions. [2022-03-18 21:09:07,763 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 349 transitions. Word has length 66 [2022-03-18 21:09:07,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:07,763 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 349 transitions. [2022-03-18 21:09:07,763 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 349 transitions. [2022-03-18 21:09:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 21:09:07,764 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:07,765 INFO L500 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, 1] [2022-03-18 21:09:07,765 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:09:07,765 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:07,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash 175120026, now seen corresponding path program 1 times [2022-03-18 21:09:07,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:07,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271753844] [2022-03-18 21:09:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:07,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:07,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:07,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:07,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271753844] [2022-03-18 21:09:07,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271753844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:07,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:07,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:07,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995897243] [2022-03-18 21:09:07,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:07,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:07,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:07,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:07,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:07,893 INFO L87 Difference]: Start difference. First operand 222 states and 349 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:08,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:10,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:13,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:13,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:13,666 INFO L93 Difference]: Finished difference Result 330 states and 516 transitions. [2022-03-18 21:09:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:13,667 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 [2022-03-18 21:09:13,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:13,669 INFO L225 Difference]: With dead ends: 330 [2022-03-18 21:09:13,669 INFO L226 Difference]: Without dead ends: 330 [2022-03-18 21:09:13,669 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:13,670 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 163 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:13,670 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 412 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-03-18 21:09:13,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-18 21:09:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 222. [2022-03-18 21:09:13,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.576036866359447) internal successors, (342), 217 states have internal predecessors, (342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:13,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 346 transitions. [2022-03-18 21:09:13,676 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 346 transitions. Word has length 67 [2022-03-18 21:09:13,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:13,676 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 346 transitions. [2022-03-18 21:09:13,676 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:13,677 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 346 transitions. [2022-03-18 21:09:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:09:13,677 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:13,678 INFO L500 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, 1] [2022-03-18 21:09:13,678 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:09:13,678 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:13,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:13,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1179369879, now seen corresponding path program 1 times [2022-03-18 21:09:13,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:13,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312051624] [2022-03-18 21:09:13,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:13,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:13,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:13,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:13,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312051624] [2022-03-18 21:09:13,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312051624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:13,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:13,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:13,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414852766] [2022-03-18 21:09:13,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:13,783 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:13,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:13,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:13,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:13,784 INFO L87 Difference]: Start difference. First operand 222 states and 346 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:16,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:17,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:17,860 INFO L93 Difference]: Finished difference Result 235 states and 362 transitions. [2022-03-18 21:09:17,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:17,860 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 [2022-03-18 21:09:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:17,862 INFO L225 Difference]: With dead ends: 235 [2022-03-18 21:09:17,862 INFO L226 Difference]: Without dead ends: 235 [2022-03-18 21:09:17,862 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:17,862 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 20 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:17,863 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 557 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 21:09:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-03-18 21:09:17,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 222. [2022-03-18 21:09:17,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 217 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:17,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 345 transitions. [2022-03-18 21:09:17,868 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 345 transitions. Word has length 68 [2022-03-18 21:09:17,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:17,868 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 345 transitions. [2022-03-18 21:09:17,868 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:17,868 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 345 transitions. [2022-03-18 21:09:17,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-18 21:09:17,869 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:17,869 INFO L500 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, 1] [2022-03-18 21:09:17,869 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:09:17,869 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash -454362324, now seen corresponding path program 1 times [2022-03-18 21:09:17,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:17,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688767399] [2022-03-18 21:09:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:17,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:17,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:09:17,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:17,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688767399] [2022-03-18 21:09:17,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688767399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:17,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:17,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241894582] [2022-03-18 21:09:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:17,980 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:17,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:17,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:17,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:17,981 INFO L87 Difference]: Start difference. First operand 222 states and 345 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:19,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:21,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:24,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:25,090 INFO L93 Difference]: Finished difference Result 330 states and 514 transitions. [2022-03-18 21:09:25,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:25,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-18 21:09:25,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:25,092 INFO L225 Difference]: With dead ends: 330 [2022-03-18 21:09:25,092 INFO L226 Difference]: Without dead ends: 330 [2022-03-18 21:09:25,092 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:25,093 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 136 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:25,093 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 438 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-18 21:09:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-03-18 21:09:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2022-03-18 21:09:25,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 239 states have (on average 1.606694560669456) internal successors, (384), 239 states have internal predecessors, (384), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 388 transitions. [2022-03-18 21:09:25,099 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 388 transitions. Word has length 69 [2022-03-18 21:09:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:25,100 INFO L478 AbstractCegarLoop]: Abstraction has 244 states and 388 transitions. [2022-03-18 21:09:25,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 388 transitions. [2022-03-18 21:09:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-18 21:09:25,101 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:25,101 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:25,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:09:25,101 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:25,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash -851471807, now seen corresponding path program 1 times [2022-03-18 21:09:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:25,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227337541] [2022-03-18 21:09:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:25,211 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-18 21:09:25,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:25,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227337541] [2022-03-18 21:09:25,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227337541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:25,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:25,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:25,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671858620] [2022-03-18 21:09:25,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:25,213 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:25,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:25,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:25,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:25,213 INFO L87 Difference]: Start difference. First operand 244 states and 388 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) [2022-03-18 21:09:27,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:29,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:30,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:31,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:31,217 INFO L93 Difference]: Finished difference Result 286 states and 448 transitions. [2022-03-18 21:09:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:31,218 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 97 [2022-03-18 21:09:31,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:31,219 INFO L225 Difference]: With dead ends: 286 [2022-03-18 21:09:31,219 INFO L226 Difference]: Without dead ends: 286 [2022-03-18 21:09:31,219 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:31,220 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 30 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:31,220 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 599 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 432 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-18 21:09:31,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-03-18 21:09:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 266. [2022-03-18 21:09:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.6015325670498084) internal successors, (418), 261 states have internal predecessors, (418), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 422 transitions. [2022-03-18 21:09:31,226 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 422 transitions. Word has length 97 [2022-03-18 21:09:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:31,226 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 422 transitions. [2022-03-18 21:09:31,226 INFO L479 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) [2022-03-18 21:09:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 422 transitions. [2022-03-18 21:09:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-18 21:09:31,227 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:31,227 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:31,227 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:09:31,227 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:31,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:31,228 INFO L85 PathProgramCache]: Analyzing trace with hash -714043438, now seen corresponding path program 1 times [2022-03-18 21:09:31,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:31,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891614056] [2022-03-18 21:09:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:31,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:09:31,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:31,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891614056] [2022-03-18 21:09:31,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891614056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:31,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:31,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481157566] [2022-03-18 21:09:31,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:31,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:31,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:31,331 INFO L87 Difference]: Start difference. First operand 266 states and 422 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:33,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:33,919 INFO L93 Difference]: Finished difference Result 352 states and 544 transitions. [2022-03-18 21:09:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-18 21:09:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:33,921 INFO L225 Difference]: With dead ends: 352 [2022-03-18 21:09:33,922 INFO L226 Difference]: Without dead ends: 352 [2022-03-18 21:09:33,922 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:33,922 INFO L912 BasicCegarLoop]: 154 mSDtfsCounter, 159 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:33,923 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 438 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 507 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-18 21:09:33,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-18 21:09:33,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 266. [2022-03-18 21:09:33,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 261 states have (on average 1.5862068965517242) internal successors, (414), 261 states have internal predecessors, (414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:33,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 418 transitions. [2022-03-18 21:09:33,930 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 418 transitions. Word has length 97 [2022-03-18 21:09:33,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:33,930 INFO L478 AbstractCegarLoop]: Abstraction has 266 states and 418 transitions. [2022-03-18 21:09:33,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:33,930 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 418 transitions. [2022-03-18 21:09:33,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-18 21:09:33,931 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:33,931 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:33,931 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:09:33,932 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:33,932 INFO L85 PathProgramCache]: Analyzing trace with hash -986051140, now seen corresponding path program 1 times [2022-03-18 21:09:33,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:33,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076804371] [2022-03-18 21:09:33,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:33,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:34,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:34,043 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:09:34,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:34,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076804371] [2022-03-18 21:09:34,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076804371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:34,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:34,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:34,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569809125] [2022-03-18 21:09:34,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:34,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:34,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:34,045 INFO L87 Difference]: Start difference. First operand 266 states and 418 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) [2022-03-18 21:09:35,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:36,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:37,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:38,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:39,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:39,431 INFO L93 Difference]: Finished difference Result 390 states and 607 transitions. [2022-03-18 21:09:39,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:39,431 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 [2022-03-18 21:09:39,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:39,433 INFO L225 Difference]: With dead ends: 390 [2022-03-18 21:09:39,433 INFO L226 Difference]: Without dead ends: 390 [2022-03-18 21:09:39,433 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:39,434 INFO L912 BasicCegarLoop]: 278 mSDtfsCounter, 158 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:39,434 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 686 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 21:09:39,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-03-18 21:09:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 282. [2022-03-18 21:09:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5703971119133573) internal successors, (435), 277 states have internal predecessors, (435), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:39,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 439 transitions. [2022-03-18 21:09:39,440 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 439 transitions. Word has length 110 [2022-03-18 21:09:39,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:39,440 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 439 transitions. [2022-03-18 21:09:39,440 INFO L479 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) [2022-03-18 21:09:39,440 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 439 transitions. [2022-03-18 21:09:39,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-18 21:09:39,441 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:39,441 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:39,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:09:39,442 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:39,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:39,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1816483301, now seen corresponding path program 1 times [2022-03-18 21:09:39,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:39,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834725937] [2022-03-18 21:09:39,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:39,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 21:09:39,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:39,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834725937] [2022-03-18 21:09:39,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834725937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:39,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:39,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:39,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20815739] [2022-03-18 21:09:39,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:39,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:39,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:39,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:39,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:39,578 INFO L87 Difference]: Start difference. First operand 282 states and 439 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:42,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:43,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:44,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:44,357 INFO L93 Difference]: Finished difference Result 295 states and 454 transitions. [2022-03-18 21:09:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:44,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-03-18 21:09:44,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:44,359 INFO L225 Difference]: With dead ends: 295 [2022-03-18 21:09:44,359 INFO L226 Difference]: Without dead ends: 295 [2022-03-18 21:09:44,359 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:44,360 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 19 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:44,360 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 634 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 21:09:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-03-18 21:09:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 282. [2022-03-18 21:09:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.5667870036101084) internal successors, (434), 277 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) [2022-03-18 21:09:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 438 transitions. [2022-03-18 21:09:44,366 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 438 transitions. Word has length 111 [2022-03-18 21:09:44,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:44,366 INFO L478 AbstractCegarLoop]: Abstraction has 282 states and 438 transitions. [2022-03-18 21:09:44,366 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 438 transitions. [2022-03-18 21:09:44,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-18 21:09:44,367 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:44,367 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:44,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:09:44,368 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:44,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:44,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2050275241, now seen corresponding path program 1 times [2022-03-18 21:09:44,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:44,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376212332] [2022-03-18 21:09:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:44,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:44,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:44,497 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-18 21:09:44,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:44,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376212332] [2022-03-18 21:09:44,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376212332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:44,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:44,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:09:44,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151888701] [2022-03-18 21:09:44,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:44,498 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:09:44,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:44,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:09:44,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:44,498 INFO L87 Difference]: Start difference. First operand 282 states and 438 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:47,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:49,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:50,265 INFO L93 Difference]: Finished difference Result 291 states and 449 transitions. [2022-03-18 21:09:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:09:50,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-03-18 21:09:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:50,267 INFO L225 Difference]: With dead ends: 291 [2022-03-18 21:09:50,267 INFO L226 Difference]: Without dead ends: 291 [2022-03-18 21:09:50,267 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:09:50,268 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 3 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:50,268 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-18 21:09:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-18 21:09:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2022-03-18 21:09:50,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.555944055944056) internal successors, (445), 286 states have internal predecessors, (445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 449 transitions. [2022-03-18 21:09:50,274 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 449 transitions. Word has length 112 [2022-03-18 21:09:50,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:50,274 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 449 transitions. [2022-03-18 21:09:50,274 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:50,274 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 449 transitions. [2022-03-18 21:09:50,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-18 21:09:50,275 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:50,275 INFO L500 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, 1] [2022-03-18 21:09:50,275 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:09:50,276 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1195242861, now seen corresponding path program 1 times [2022-03-18 21:09:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:50,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687310794] [2022-03-18 21:09:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:50,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:50,401 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-18 21:09:50,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:50,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687310794] [2022-03-18 21:09:50,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687310794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:50,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:50,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:50,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115138621] [2022-03-18 21:09:50,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:50,402 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:50,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:50,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:50,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:50,403 INFO L87 Difference]: Start difference. First operand 291 states and 449 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) [2022-03-18 21:09:51,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:53,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:55,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:56,837 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:09:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:09:57,200 INFO L93 Difference]: Finished difference Result 308 states and 470 transitions. [2022-03-18 21:09:57,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:09:57,200 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 [2022-03-18 21:09:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:09:57,202 INFO L225 Difference]: With dead ends: 308 [2022-03-18 21:09:57,202 INFO L226 Difference]: Without dead ends: 308 [2022-03-18 21:09:57,202 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:09:57,202 INFO L912 BasicCegarLoop]: 221 mSDtfsCounter, 34 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:09:57,203 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 410 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-03-18 21:09:57,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-03-18 21:09:57,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 291. [2022-03-18 21:09:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.5524475524475525) internal successors, (444), 286 states have internal predecessors, (444), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 448 transitions. [2022-03-18 21:09:57,208 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 448 transitions. Word has length 114 [2022-03-18 21:09:57,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:09:57,209 INFO L478 AbstractCegarLoop]: Abstraction has 291 states and 448 transitions. [2022-03-18 21:09:57,209 INFO L479 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) [2022-03-18 21:09:57,209 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 448 transitions. [2022-03-18 21:09:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-18 21:09:57,210 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:09:57,210 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:09:57,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:09:57,210 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:09:57,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:09:57,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1677366494, now seen corresponding path program 1 times [2022-03-18 21:09:57,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:09:57,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996563682] [2022-03-18 21:09:57,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:09:57,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:09:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:57,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:09:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:09:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:09:57,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:09:57,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996563682] [2022-03-18 21:09:57,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996563682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:09:57,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:09:57,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:09:57,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417633119] [2022-03-18 21:09:57,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:09:57,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:09:57,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:09:57,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:09:57,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:09:57,332 INFO L87 Difference]: Start difference. First operand 291 states and 448 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:09:59,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:01,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:01,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:01,545 INFO L93 Difference]: Finished difference Result 462 states and 713 transitions. [2022-03-18 21:10:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:01,546 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 119 [2022-03-18 21:10:01,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:01,547 INFO L225 Difference]: With dead ends: 462 [2022-03-18 21:10:01,547 INFO L226 Difference]: Without dead ends: 462 [2022-03-18 21:10:01,548 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:01,548 INFO L912 BasicCegarLoop]: 160 mSDtfsCounter, 141 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:01,548 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 450 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 21:10:01,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-03-18 21:10:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 355. [2022-03-18 21:10:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5657142857142856) internal successors, (548), 350 states have internal predecessors, (548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:01,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 552 transitions. [2022-03-18 21:10:01,555 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 552 transitions. Word has length 119 [2022-03-18 21:10:01,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:01,555 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 552 transitions. [2022-03-18 21:10:01,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:01,555 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 552 transitions. [2022-03-18 21:10:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-18 21:10:01,556 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:01,557 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:01,557 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:10:01,557 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:01,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:01,557 INFO L85 PathProgramCache]: Analyzing trace with hash -493221854, now seen corresponding path program 1 times [2022-03-18 21:10:01,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:01,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578877911] [2022-03-18 21:10:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:01,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-18 21:10:01,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:01,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578877911] [2022-03-18 21:10:01,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578877911] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:01,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:01,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:01,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031423744] [2022-03-18 21:10:01,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:01,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:01,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:01,681 INFO L87 Difference]: Start difference. First operand 355 states and 552 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) [2022-03-18 21:10:04,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:05,203 INFO L93 Difference]: Finished difference Result 362 states and 561 transitions. [2022-03-18 21:10:05,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:05,204 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 124 [2022-03-18 21:10:05,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:05,205 INFO L225 Difference]: With dead ends: 362 [2022-03-18 21:10:05,205 INFO L226 Difference]: Without dead ends: 362 [2022-03-18 21:10:05,206 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:05,206 INFO L912 BasicCegarLoop]: 228 mSDtfsCounter, 30 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:05,206 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 591 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-18 21:10:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-18 21:10:05,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-03-18 21:10:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.562857142857143) internal successors, (547), 350 states have internal predecessors, (547), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 551 transitions. [2022-03-18 21:10:05,212 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 551 transitions. Word has length 124 [2022-03-18 21:10:05,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:05,213 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 551 transitions. [2022-03-18 21:10:05,213 INFO L479 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) [2022-03-18 21:10:05,213 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 551 transitions. [2022-03-18 21:10:05,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-18 21:10:05,214 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:05,214 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:05,214 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:10:05,214 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:05,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:05,215 INFO L85 PathProgramCache]: Analyzing trace with hash 423811832, now seen corresponding path program 1 times [2022-03-18 21:10:05,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:05,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598563697] [2022-03-18 21:10:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:05,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:05,345 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:10:05,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:05,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598563697] [2022-03-18 21:10:05,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598563697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:05,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:05,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300600335] [2022-03-18 21:10:05,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:05,346 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:05,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:05,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:05,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:05,347 INFO L87 Difference]: Start difference. First operand 355 states and 551 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:06,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:07,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:09,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:09,488 INFO L93 Difference]: Finished difference Result 464 states and 713 transitions. [2022-03-18 21:10:09,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:09,488 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 [2022-03-18 21:10:09,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:09,489 INFO L225 Difference]: With dead ends: 464 [2022-03-18 21:10:09,490 INFO L226 Difference]: Without dead ends: 464 [2022-03-18 21:10:09,490 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:09,490 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 92 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:09,491 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 547 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 21:10:09,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-18 21:10:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 394. [2022-03-18 21:10:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 389 states have (on average 1.5681233933161953) internal successors, (610), 389 states have internal predecessors, (610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 614 transitions. [2022-03-18 21:10:09,497 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 614 transitions. Word has length 125 [2022-03-18 21:10:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:09,498 INFO L478 AbstractCegarLoop]: Abstraction has 394 states and 614 transitions. [2022-03-18 21:10:09,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 614 transitions. [2022-03-18 21:10:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-18 21:10:09,499 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:09,499 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:09,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:10:09,499 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:09,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash 437344633, now seen corresponding path program 1 times [2022-03-18 21:10:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:09,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160919790] [2022-03-18 21:10:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:09,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:10:09,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:09,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160919790] [2022-03-18 21:10:09,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160919790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:09,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:09,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:09,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066039171] [2022-03-18 21:10:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:09,624 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:09,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:09,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:09,625 INFO L87 Difference]: Start difference. First operand 394 states and 614 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:10,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:12,416 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 [] [2022-03-18 21:10:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:13,774 INFO L93 Difference]: Finished difference Result 529 states and 815 transitions. [2022-03-18 21:10:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:13,775 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 [2022-03-18 21:10:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:13,779 INFO L225 Difference]: With dead ends: 529 [2022-03-18 21:10:13,779 INFO L226 Difference]: Without dead ends: 529 [2022-03-18 21:10:13,780 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:13,780 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 137 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:13,780 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 410 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 21:10:13,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-03-18 21:10:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 392. [2022-03-18 21:10:13,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 387 states have (on average 1.5684754521963824) internal successors, (607), 387 states have internal predecessors, (607), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 611 transitions. [2022-03-18 21:10:13,788 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 611 transitions. Word has length 125 [2022-03-18 21:10:13,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:13,788 INFO L478 AbstractCegarLoop]: Abstraction has 392 states and 611 transitions. [2022-03-18 21:10:13,788 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:13,788 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 611 transitions. [2022-03-18 21:10:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 21:10:13,789 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:13,789 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:13,789 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:10:13,790 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:13,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash 295665995, now seen corresponding path program 1 times [2022-03-18 21:10:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:13,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463926079] [2022-03-18 21:10:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:13,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:13,907 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:10:13,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:13,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463926079] [2022-03-18 21:10:13,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463926079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:13,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:13,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:13,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771845506] [2022-03-18 21:10:13,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:13,909 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:13,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:13,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:13,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:13,909 INFO L87 Difference]: Start difference. First operand 392 states and 611 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:16,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:18,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:20,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:20,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:20,541 INFO L93 Difference]: Finished difference Result 498 states and 768 transitions. [2022-03-18 21:10:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:20,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-18 21:10:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:20,543 INFO L225 Difference]: With dead ends: 498 [2022-03-18 21:10:20,543 INFO L226 Difference]: Without dead ends: 498 [2022-03-18 21:10:20,543 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:20,544 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 87 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:20,544 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 541 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-18 21:10:20,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-03-18 21:10:20,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 432. [2022-03-18 21:10:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 427 states have (on average 1.5714285714285714) internal successors, (671), 427 states have internal predecessors, (671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:20,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 675 transitions. [2022-03-18 21:10:20,551 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 675 transitions. Word has length 126 [2022-03-18 21:10:20,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:20,551 INFO L478 AbstractCegarLoop]: Abstraction has 432 states and 675 transitions. [2022-03-18 21:10:20,551 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:20,552 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 675 transitions. [2022-03-18 21:10:20,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-18 21:10:20,553 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:20,553 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:20,553 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:10:20,553 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:20,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:20,553 INFO L85 PathProgramCache]: Analyzing trace with hash 715182826, now seen corresponding path program 1 times [2022-03-18 21:10:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:20,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115253897] [2022-03-18 21:10:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:20,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-18 21:10:20,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:20,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115253897] [2022-03-18 21:10:20,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115253897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:20,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:20,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:20,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824334021] [2022-03-18 21:10:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:20,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:20,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:20,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:20,665 INFO L87 Difference]: Start difference. First operand 432 states and 675 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:21,914 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:23,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:25,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:27,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:28,170 INFO L93 Difference]: Finished difference Result 488 states and 753 transitions. [2022-03-18 21:10:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:28,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-18 21:10:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:28,173 INFO L225 Difference]: With dead ends: 488 [2022-03-18 21:10:28,173 INFO L226 Difference]: Without dead ends: 488 [2022-03-18 21:10:28,173 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:28,173 INFO L912 BasicCegarLoop]: 267 mSDtfsCounter, 36 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:28,174 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 669 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-18 21:10:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-03-18 21:10:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 456. [2022-03-18 21:10:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 451 states have (on average 1.5676274944567627) internal successors, (707), 451 states have internal predecessors, (707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 711 transitions. [2022-03-18 21:10:28,180 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 711 transitions. Word has length 126 [2022-03-18 21:10:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:28,181 INFO L478 AbstractCegarLoop]: Abstraction has 456 states and 711 transitions. [2022-03-18 21:10:28,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 711 transitions. [2022-03-18 21:10:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-18 21:10:28,182 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:28,182 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:28,182 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:10:28,182 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:28,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:28,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1786561130, now seen corresponding path program 1 times [2022-03-18 21:10:28,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:28,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821060146] [2022-03-18 21:10:28,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:28,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:28,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:28,303 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:10:28,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:28,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821060146] [2022-03-18 21:10:28,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821060146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:28,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:28,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:28,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591284923] [2022-03-18 21:10:28,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:28,304 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:28,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:28,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:28,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:28,304 INFO L87 Difference]: Start difference. First operand 456 states and 711 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:29,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:31,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:33,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:33,349 INFO L93 Difference]: Finished difference Result 513 states and 788 transitions. [2022-03-18 21:10:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-18 21:10:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:33,351 INFO L225 Difference]: With dead ends: 513 [2022-03-18 21:10:33,351 INFO L226 Difference]: Without dead ends: 513 [2022-03-18 21:10:33,351 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:33,352 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 69 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:33,352 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 547 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:10:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-03-18 21:10:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 459. [2022-03-18 21:10:33,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5638766519823788) internal successors, (710), 454 states have internal predecessors, (710), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 714 transitions. [2022-03-18 21:10:33,359 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 714 transitions. Word has length 133 [2022-03-18 21:10:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:33,359 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 714 transitions. [2022-03-18 21:10:33,359 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:33,359 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 714 transitions. [2022-03-18 21:10:33,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-18 21:10:33,360 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:33,361 INFO L500 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, 1] [2022-03-18 21:10:33,361 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:10:33,361 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:33,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash 500717211, now seen corresponding path program 1 times [2022-03-18 21:10:33,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:33,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500723199] [2022-03-18 21:10:33,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:33,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:10:33,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:33,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500723199] [2022-03-18 21:10:33,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500723199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:33,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:33,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:33,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581777314] [2022-03-18 21:10:33,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:33,479 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:33,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:33,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:33,479 INFO L87 Difference]: Start difference. First operand 459 states and 714 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:34,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:36,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:38,531 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 [] [2022-03-18 21:10:38,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:38,982 INFO L93 Difference]: Finished difference Result 544 states and 830 transitions. [2022-03-18 21:10:38,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:38,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-18 21:10:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:38,984 INFO L225 Difference]: With dead ends: 544 [2022-03-18 21:10:38,984 INFO L226 Difference]: Without dead ends: 544 [2022-03-18 21:10:38,985 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:38,985 INFO L912 BasicCegarLoop]: 155 mSDtfsCounter, 159 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:38,985 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 440 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:10:38,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-03-18 21:10:38,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 459. [2022-03-18 21:10:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5462555066079295) internal successors, (702), 454 states have internal predecessors, (702), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:38,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 706 transitions. [2022-03-18 21:10:38,993 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 706 transitions. Word has length 143 [2022-03-18 21:10:38,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:38,993 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 706 transitions. [2022-03-18 21:10:38,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 706 transitions. [2022-03-18 21:10:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 21:10:38,994 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:38,994 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:38,995 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:10:38,995 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:38,995 INFO L85 PathProgramCache]: Analyzing trace with hash 111454881, now seen corresponding path program 1 times [2022-03-18 21:10:38,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:38,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862510054] [2022-03-18 21:10:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:38,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:10:39,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:39,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862510054] [2022-03-18 21:10:39,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862510054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:39,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:39,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:39,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934200850] [2022-03-18 21:10:39,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:39,132 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:39,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:39,133 INFO L87 Difference]: Start difference. First operand 459 states and 706 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) [2022-03-18 21:10:41,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:43,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:45,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:46,253 INFO L93 Difference]: Finished difference Result 493 states and 754 transitions. [2022-03-18 21:10:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:46,254 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 146 [2022-03-18 21:10:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:46,255 INFO L225 Difference]: With dead ends: 493 [2022-03-18 21:10:46,255 INFO L226 Difference]: Without dead ends: 493 [2022-03-18 21:10:46,255 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:46,256 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 90 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:46,256 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 563 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-03-18 21:10:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-03-18 21:10:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 459. [2022-03-18 21:10:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.5440528634361232) internal successors, (701), 454 states have internal predecessors, (701), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 705 transitions. [2022-03-18 21:10:46,263 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 705 transitions. Word has length 146 [2022-03-18 21:10:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:46,263 INFO L478 AbstractCegarLoop]: Abstraction has 459 states and 705 transitions. [2022-03-18 21:10:46,263 INFO L479 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) [2022-03-18 21:10:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 705 transitions. [2022-03-18 21:10:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 21:10:46,264 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:46,264 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:46,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:10:46,265 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:46,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:46,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1380090645, now seen corresponding path program 1 times [2022-03-18 21:10:46,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:46,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64763797] [2022-03-18 21:10:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:46,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:10:46,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:46,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64763797] [2022-03-18 21:10:46,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64763797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:46,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:46,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:46,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855871079] [2022-03-18 21:10:46,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:46,381 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:46,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:46,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:46,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:46,382 INFO L87 Difference]: Start difference. First operand 459 states and 705 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) [2022-03-18 21:10:49,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:51,219 INFO L93 Difference]: Finished difference Result 584 states and 887 transitions. [2022-03-18 21:10:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:51,220 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 [2022-03-18 21:10:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:51,221 INFO L225 Difference]: With dead ends: 584 [2022-03-18 21:10:51,222 INFO L226 Difference]: Without dead ends: 584 [2022-03-18 21:10:51,222 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:51,222 INFO L912 BasicCegarLoop]: 155 mSDtfsCounter, 142 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:51,222 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 440 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 21:10:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-03-18 21:10:51,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 489. [2022-03-18 21:10:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5351239669421488) internal successors, (743), 484 states have internal predecessors, (743), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 747 transitions. [2022-03-18 21:10:51,229 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 747 transitions. Word has length 146 [2022-03-18 21:10:51,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:51,230 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 747 transitions. [2022-03-18 21:10:51,230 INFO L479 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) [2022-03-18 21:10:51,230 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 747 transitions. [2022-03-18 21:10:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 21:10:51,243 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:51,243 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:51,243 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:10:51,244 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:51,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:51,244 INFO L85 PathProgramCache]: Analyzing trace with hash -841746752, now seen corresponding path program 1 times [2022-03-18 21:10:51,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:51,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999726976] [2022-03-18 21:10:51,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:51,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:51,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-18 21:10:51,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:51,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999726976] [2022-03-18 21:10:51,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999726976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:51,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:51,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:51,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268157811] [2022-03-18 21:10:51,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:51,353 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:51,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:51,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:51,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:51,354 INFO L87 Difference]: Start difference. First operand 489 states and 747 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) [2022-03-18 21:10:52,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:54,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:55,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:10:56,343 INFO L93 Difference]: Finished difference Result 501 states and 763 transitions. [2022-03-18 21:10:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:10:56,344 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 146 [2022-03-18 21:10:56,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:10:56,346 INFO L225 Difference]: With dead ends: 501 [2022-03-18 21:10:56,346 INFO L226 Difference]: Without dead ends: 501 [2022-03-18 21:10:56,346 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:10:56,346 INFO L912 BasicCegarLoop]: 260 mSDtfsCounter, 40 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:10:56,347 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 655 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-03-18 21:10:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-03-18 21:10:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 489. [2022-03-18 21:10:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5330578512396693) internal successors, (742), 484 states have internal predecessors, (742), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 746 transitions. [2022-03-18 21:10:56,353 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 746 transitions. Word has length 146 [2022-03-18 21:10:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:10:56,353 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 746 transitions. [2022-03-18 21:10:56,353 INFO L479 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) [2022-03-18 21:10:56,353 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 746 transitions. [2022-03-18 21:10:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-18 21:10:56,355 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:10:56,355 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:10:56,355 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:10:56,355 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:10:56,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:10:56,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1302552011, now seen corresponding path program 1 times [2022-03-18 21:10:56,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:10:56,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668892318] [2022-03-18 21:10:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:10:56,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:10:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:10:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:10:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:10:56,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:10:56,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668892318] [2022-03-18 21:10:56,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668892318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:10:56,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:10:56,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:10:56,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031367214] [2022-03-18 21:10:56,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:10:56,477 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:10:56,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:10:56,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:10:56,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:10:56,478 INFO L87 Difference]: Start difference. First operand 489 states and 746 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:10:57,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:10:59,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:01,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:01,658 INFO L93 Difference]: Finished difference Result 521 states and 792 transitions. [2022-03-18 21:11:01,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:01,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-18 21:11:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:01,659 INFO L225 Difference]: With dead ends: 521 [2022-03-18 21:11:01,660 INFO L226 Difference]: Without dead ends: 521 [2022-03-18 21:11:01,660 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:01,660 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 67 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:01,660 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 567 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:11:01,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-18 21:11:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 489. [2022-03-18 21:11:01,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.53099173553719) internal successors, (741), 484 states have internal predecessors, (741), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:01,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 745 transitions. [2022-03-18 21:11:01,667 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 745 transitions. Word has length 147 [2022-03-18 21:11:01,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:01,667 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 745 transitions. [2022-03-18 21:11:01,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 745 transitions. [2022-03-18 21:11:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:11:01,668 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:01,668 INFO L500 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] [2022-03-18 21:11:01,668 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:11:01,669 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:01,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:01,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1125148137, now seen corresponding path program 1 times [2022-03-18 21:11:01,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:01,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913773322] [2022-03-18 21:11:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:11:01,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:01,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913773322] [2022-03-18 21:11:01,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913773322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:01,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:01,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:01,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133263525] [2022-03-18 21:11:01,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:01,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:01,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:01,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:01,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:01,782 INFO L87 Difference]: Start difference. First operand 489 states and 745 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:03,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:04,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:06,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:08,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:09,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:09,302 INFO L93 Difference]: Finished difference Result 574 states and 862 transitions. [2022-03-18 21:11:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:09,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 21:11:09,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:09,304 INFO L225 Difference]: With dead ends: 574 [2022-03-18 21:11:09,304 INFO L226 Difference]: Without dead ends: 574 [2022-03-18 21:11:09,304 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:09,305 INFO L912 BasicCegarLoop]: 148 mSDtfsCounter, 148 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:09,305 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 426 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 502 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-18 21:11:09,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-03-18 21:11:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 489. [2022-03-18 21:11:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5165289256198347) internal successors, (734), 484 states have internal predecessors, (734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 738 transitions. [2022-03-18 21:11:09,313 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 738 transitions. Word has length 148 [2022-03-18 21:11:09,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:09,313 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 738 transitions. [2022-03-18 21:11:09,313 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:09,314 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 738 transitions. [2022-03-18 21:11:09,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:11:09,315 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:09,315 INFO L500 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] [2022-03-18 21:11:09,315 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:11:09,315 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:09,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash -73587128, now seen corresponding path program 1 times [2022-03-18 21:11:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:09,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807323886] [2022-03-18 21:11:09,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 21:11:09,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:09,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807323886] [2022-03-18 21:11:09,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807323886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:09,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:09,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:11:09,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679292577] [2022-03-18 21:11:09,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:09,450 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:11:09,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:09,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:11:09,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:11:09,451 INFO L87 Difference]: Start difference. First operand 489 states and 738 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:12,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:14,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:14,662 INFO L93 Difference]: Finished difference Result 947 states and 1419 transitions. [2022-03-18 21:11:14,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:11:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 21:11:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:14,665 INFO L225 Difference]: With dead ends: 947 [2022-03-18 21:11:14,665 INFO L226 Difference]: Without dead ends: 947 [2022-03-18 21:11:14,665 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:11:14,666 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:14,666 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 448 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 340 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:11:14,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-03-18 21:11:14,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 945. [2022-03-18 21:11:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 940 states have (on average 1.504255319148936) internal successors, (1414), 940 states have internal predecessors, (1414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:14,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1418 transitions. [2022-03-18 21:11:14,677 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1418 transitions. Word has length 148 [2022-03-18 21:11:14,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:14,678 INFO L478 AbstractCegarLoop]: Abstraction has 945 states and 1418 transitions. [2022-03-18 21:11:14,678 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:14,678 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1418 transitions. [2022-03-18 21:11:14,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:11:14,680 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:14,680 INFO L500 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] [2022-03-18 21:11:14,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:11:14,680 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:14,680 INFO L85 PathProgramCache]: Analyzing trace with hash 50486119, now seen corresponding path program 1 times [2022-03-18 21:11:14,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:14,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928081990] [2022-03-18 21:11:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:14,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:14,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:14,794 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-03-18 21:11:14,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:14,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928081990] [2022-03-18 21:11:14,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928081990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:14,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:14,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:14,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964129643] [2022-03-18 21:11:14,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:14,794 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:14,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:14,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:14,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:14,795 INFO L87 Difference]: Start difference. First operand 945 states and 1418 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:16,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:18,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:20,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:20,004 INFO L93 Difference]: Finished difference Result 1044 states and 1554 transitions. [2022-03-18 21:11:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:20,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 21:11:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:20,007 INFO L225 Difference]: With dead ends: 1044 [2022-03-18 21:11:20,007 INFO L226 Difference]: Without dead ends: 1044 [2022-03-18 21:11:20,007 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:20,007 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 36 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:20,008 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 641 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-18 21:11:20,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-03-18 21:11:20,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 997. [2022-03-18 21:11:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.502016129032258) internal successors, (1490), 992 states have internal predecessors, (1490), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:20,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1494 transitions. [2022-03-18 21:11:20,037 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1494 transitions. Word has length 148 [2022-03-18 21:11:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:20,037 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1494 transitions. [2022-03-18 21:11:20,037 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1494 transitions. [2022-03-18 21:11:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-18 21:11:20,039 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:20,040 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:20,040 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:11:20,040 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:20,041 INFO L85 PathProgramCache]: Analyzing trace with hash 2147424636, now seen corresponding path program 1 times [2022-03-18 21:11:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:20,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107428344] [2022-03-18 21:11:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:20,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:11:20,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:20,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107428344] [2022-03-18 21:11:20,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107428344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:20,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:20,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:20,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748305971] [2022-03-18 21:11:20,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:20,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:20,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:20,169 INFO L87 Difference]: Start difference. First operand 997 states and 1494 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:22,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:24,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:25,103 INFO L93 Difference]: Finished difference Result 1060 states and 1579 transitions. [2022-03-18 21:11:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:25,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-18 21:11:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:25,106 INFO L225 Difference]: With dead ends: 1060 [2022-03-18 21:11:25,106 INFO L226 Difference]: Without dead ends: 1060 [2022-03-18 21:11:25,107 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:25,108 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 68 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:25,108 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 581 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:11:25,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2022-03-18 21:11:25,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 997. [2022-03-18 21:11:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.5) internal successors, (1488), 992 states have internal predecessors, (1488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:25,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1492 transitions. [2022-03-18 21:11:25,122 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1492 transitions. Word has length 150 [2022-03-18 21:11:25,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:25,123 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1492 transitions. [2022-03-18 21:11:25,123 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:25,123 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1492 transitions. [2022-03-18 21:11:25,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-18 21:11:25,125 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:25,125 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:25,125 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:11:25,125 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:25,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:25,126 INFO L85 PathProgramCache]: Analyzing trace with hash -256300962, now seen corresponding path program 1 times [2022-03-18 21:11:25,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:25,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537752037] [2022-03-18 21:11:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:25,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:25,253 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:11:25,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:25,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537752037] [2022-03-18 21:11:25,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537752037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:25,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:25,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:25,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189845240] [2022-03-18 21:11:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:25,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:25,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:25,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:25,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:25,255 INFO L87 Difference]: Start difference. First operand 997 states and 1492 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:26,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:28,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:30,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:32,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:33,005 INFO L93 Difference]: Finished difference Result 1162 states and 1704 transitions. [2022-03-18 21:11:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 151 [2022-03-18 21:11:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:33,008 INFO L225 Difference]: With dead ends: 1162 [2022-03-18 21:11:33,008 INFO L226 Difference]: Without dead ends: 1162 [2022-03-18 21:11:33,009 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:33,009 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 143 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:33,009 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 412 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 492 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-18 21:11:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2022-03-18 21:11:33,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 997. [2022-03-18 21:11:33,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4858870967741935) internal successors, (1474), 992 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:33,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1478 transitions. [2022-03-18 21:11:33,021 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1478 transitions. Word has length 151 [2022-03-18 21:11:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:33,021 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1478 transitions. [2022-03-18 21:11:33,021 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1478 transitions. [2022-03-18 21:11:33,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:11:33,023 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:33,023 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-18 21:11:33,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:11:33,023 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:33,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:33,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1370523072, now seen corresponding path program 1 times [2022-03-18 21:11:33,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:33,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970890605] [2022-03-18 21:11:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:33,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:11:33,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:33,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970890605] [2022-03-18 21:11:33,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970890605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:33,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:33,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:33,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317004065] [2022-03-18 21:11:33,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:33,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:33,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:33,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:33,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:33,141 INFO L87 Difference]: Start difference. First operand 997 states and 1478 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:34,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:36,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:38,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:40,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:40,618 INFO L93 Difference]: Finished difference Result 1044 states and 1537 transitions. [2022-03-18 21:11:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:40,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:11:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:40,621 INFO L225 Difference]: With dead ends: 1044 [2022-03-18 21:11:40,621 INFO L226 Difference]: Without dead ends: 1044 [2022-03-18 21:11:40,621 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:40,621 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:40,621 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 599 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-18 21:11:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-03-18 21:11:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 997. [2022-03-18 21:11:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4838709677419355) internal successors, (1472), 992 states have internal predecessors, (1472), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1476 transitions. [2022-03-18 21:11:40,632 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1476 transitions. Word has length 154 [2022-03-18 21:11:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:40,632 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1476 transitions. [2022-03-18 21:11:40,632 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1476 transitions. [2022-03-18 21:11:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-18 21:11:40,634 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:40,634 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-03-18 21:11:40,634 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:11:40,635 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:40,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1544979744, now seen corresponding path program 1 times [2022-03-18 21:11:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:40,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332562524] [2022-03-18 21:11:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:40,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:40,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:11:40,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:40,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332562524] [2022-03-18 21:11:40,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332562524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:40,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:40,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:40,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236547485] [2022-03-18 21:11:40,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:40,763 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:40,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:40,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:40,763 INFO L87 Difference]: Start difference. First operand 997 states and 1476 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:43,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:44,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:46,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:47,081 INFO L93 Difference]: Finished difference Result 1040 states and 1529 transitions. [2022-03-18 21:11:47,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:47,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-18 21:11:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:47,085 INFO L225 Difference]: With dead ends: 1040 [2022-03-18 21:11:47,085 INFO L226 Difference]: Without dead ends: 1040 [2022-03-18 21:11:47,085 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:47,086 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 56 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:47,086 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-03-18 21:11:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-03-18 21:11:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 997. [2022-03-18 21:11:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4818548387096775) internal successors, (1470), 992 states have internal predecessors, (1470), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1474 transitions. [2022-03-18 21:11:47,097 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1474 transitions. Word has length 155 [2022-03-18 21:11:47,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:47,097 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1474 transitions. [2022-03-18 21:11:47,097 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1474 transitions. [2022-03-18 21:11:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-18 21:11:47,099 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:47,100 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-18 21:11:47,100 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:11:47,100 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash -728495667, now seen corresponding path program 1 times [2022-03-18 21:11:47,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:47,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537173302] [2022-03-18 21:11:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:47,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:47,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:11:47,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:47,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537173302] [2022-03-18 21:11:47,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537173302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:47,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:47,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:47,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945780265] [2022-03-18 21:11:47,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:47,216 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:47,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:47,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:47,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:47,216 INFO L87 Difference]: Start difference. First operand 997 states and 1474 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:48,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:50,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:52,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:54,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:54,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:11:54,452 INFO L93 Difference]: Finished difference Result 1040 states and 1527 transitions. [2022-03-18 21:11:54,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:11:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-18 21:11:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:11:54,455 INFO L225 Difference]: With dead ends: 1040 [2022-03-18 21:11:54,455 INFO L226 Difference]: Without dead ends: 1040 [2022-03-18 21:11:54,455 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:11:54,456 INFO L912 BasicCegarLoop]: 234 mSDtfsCounter, 49 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:11:54,456 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 605 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 21:11:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-03-18 21:11:54,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 997. [2022-03-18 21:11:54,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 992 states have (on average 1.4798387096774193) internal successors, (1468), 992 states have internal predecessors, (1468), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1472 transitions. [2022-03-18 21:11:54,465 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1472 transitions. Word has length 158 [2022-03-18 21:11:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:11:54,465 INFO L478 AbstractCegarLoop]: Abstraction has 997 states and 1472 transitions. [2022-03-18 21:11:54,465 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1472 transitions. [2022-03-18 21:11:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-18 21:11:54,467 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:11:54,467 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:11:54,467 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:11:54,467 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:11:54,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:11:54,468 INFO L85 PathProgramCache]: Analyzing trace with hash -212926458, now seen corresponding path program 1 times [2022-03-18 21:11:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:11:54,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595813181] [2022-03-18 21:11:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:11:54,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:11:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:54,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:11:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:11:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:11:54,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:11:54,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595813181] [2022-03-18 21:11:54,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595813181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:11:54,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:11:54,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:11:54,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977415831] [2022-03-18 21:11:54,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:11:54,587 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:11:54,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:11:54,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:11:54,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:11:54,589 INFO L87 Difference]: Start difference. First operand 997 states and 1472 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:11:57,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:11:58,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:00,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:00,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:00,462 INFO L93 Difference]: Finished difference Result 1242 states and 1812 transitions. [2022-03-18 21:12:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:00,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-18 21:12:00,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:00,465 INFO L225 Difference]: With dead ends: 1242 [2022-03-18 21:12:00,465 INFO L226 Difference]: Without dead ends: 1242 [2022-03-18 21:12:00,466 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:00,466 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 136 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:00,466 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 412 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-18 21:12:00,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-03-18 21:12:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1067. [2022-03-18 21:12:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4764595103578155) internal successors, (1568), 1062 states have internal predecessors, (1568), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:00,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1572 transitions. [2022-03-18 21:12:00,476 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1572 transitions. Word has length 158 [2022-03-18 21:12:00,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:00,476 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1572 transitions. [2022-03-18 21:12:00,476 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:00,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1572 transitions. [2022-03-18 21:12:00,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-18 21:12:00,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:00,478 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-18 21:12:00,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:12:00,478 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:00,478 INFO L85 PathProgramCache]: Analyzing trace with hash -159893672, now seen corresponding path program 1 times [2022-03-18 21:12:00,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:00,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819115690] [2022-03-18 21:12:00,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:00,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:00,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-18 21:12:00,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:00,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819115690] [2022-03-18 21:12:00,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819115690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:00,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:00,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:00,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357058299] [2022-03-18 21:12:00,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:00,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:00,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:00,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:00,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:00,626 INFO L87 Difference]: Start difference. First operand 1067 states and 1572 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:01,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:03,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:05,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:07,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:07,888 INFO L93 Difference]: Finished difference Result 1232 states and 1788 transitions. [2022-03-18 21:12:07,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:07,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-03-18 21:12:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:07,891 INFO L225 Difference]: With dead ends: 1232 [2022-03-18 21:12:07,891 INFO L226 Difference]: Without dead ends: 1232 [2022-03-18 21:12:07,891 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:07,892 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 137 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:07,892 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 412 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-03-18 21:12:07,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2022-03-18 21:12:07,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1067. [2022-03-18 21:12:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4670433145009416) internal successors, (1558), 1062 states have internal predecessors, (1558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1562 transitions. [2022-03-18 21:12:07,903 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1562 transitions. Word has length 159 [2022-03-18 21:12:07,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:07,903 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1562 transitions. [2022-03-18 21:12:07,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1562 transitions. [2022-03-18 21:12:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-18 21:12:07,905 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:07,905 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:07,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:12:07,906 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:07,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1161711826, now seen corresponding path program 1 times [2022-03-18 21:12:07,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:07,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225602137] [2022-03-18 21:12:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:07,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-18 21:12:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:08,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225602137] [2022-03-18 21:12:08,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225602137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:08,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:08,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361263177] [2022-03-18 21:12:08,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:08,032 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:08,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:08,032 INFO L87 Difference]: Start difference. First operand 1067 states and 1562 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) [2022-03-18 21:12:09,464 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:11,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:13,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:15,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:15,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:15,926 INFO L93 Difference]: Finished difference Result 1092 states and 1592 transitions. [2022-03-18 21:12:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:15,926 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 159 [2022-03-18 21:12:15,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:15,929 INFO L225 Difference]: With dead ends: 1092 [2022-03-18 21:12:15,929 INFO L226 Difference]: Without dead ends: 1092 [2022-03-18 21:12:15,929 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:15,929 INFO L912 BasicCegarLoop]: 237 mSDtfsCounter, 33 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:15,929 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 611 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 476 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-03-18 21:12:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-03-18 21:12:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1067. [2022-03-18 21:12:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4651600753295668) internal successors, (1556), 1062 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1560 transitions. [2022-03-18 21:12:15,940 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1560 transitions. Word has length 159 [2022-03-18 21:12:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:15,940 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1560 transitions. [2022-03-18 21:12:15,941 INFO L479 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) [2022-03-18 21:12:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1560 transitions. [2022-03-18 21:12:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-18 21:12:15,942 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:15,943 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:15,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:12:15,943 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:15,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:15,943 INFO L85 PathProgramCache]: Analyzing trace with hash -77990792, now seen corresponding path program 1 times [2022-03-18 21:12:15,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:15,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017700216] [2022-03-18 21:12:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:15,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:16,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-03-18 21:12:16,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:16,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017700216] [2022-03-18 21:12:16,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017700216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:16,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:16,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:12:16,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425428089] [2022-03-18 21:12:16,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:16,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:12:16,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:16,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:12:16,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:16,046 INFO L87 Difference]: Start difference. First operand 1067 states and 1560 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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) [2022-03-18 21:12:19,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:19,430 INFO L93 Difference]: Finished difference Result 1094 states and 1595 transitions. [2022-03-18 21:12:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:12:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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 167 [2022-03-18 21:12:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:19,433 INFO L225 Difference]: With dead ends: 1094 [2022-03-18 21:12:19,433 INFO L226 Difference]: Without dead ends: 1094 [2022-03-18 21:12:19,433 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:19,433 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:19,433 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 439 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 21:12:19,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-03-18 21:12:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2022-03-18 21:12:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1089 states have (on average 1.460973370064279) internal successors, (1591), 1089 states have internal predecessors, (1591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:19,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1595 transitions. [2022-03-18 21:12:19,443 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1595 transitions. Word has length 167 [2022-03-18 21:12:19,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:19,443 INFO L478 AbstractCegarLoop]: Abstraction has 1094 states and 1595 transitions. [2022-03-18 21:12:19,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 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) [2022-03-18 21:12:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1595 transitions. [2022-03-18 21:12:19,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-18 21:12:19,444 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:19,445 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:19,445 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:12:19,445 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:19,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:19,445 INFO L85 PathProgramCache]: Analyzing trace with hash -155981063, now seen corresponding path program 1 times [2022-03-18 21:12:19,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:19,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921056497] [2022-03-18 21:12:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:19,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:19,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-18 21:12:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:19,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921056497] [2022-03-18 21:12:19,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921056497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:19,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:19,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:12:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913549853] [2022-03-18 21:12:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:19,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:12:19,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:19,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:12:19,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:19,573 INFO L87 Difference]: Start difference. First operand 1094 states and 1595 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:22,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:23,288 INFO L93 Difference]: Finished difference Result 1096 states and 1597 transitions. [2022-03-18 21:12:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:12:23,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-03-18 21:12:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:23,291 INFO L225 Difference]: With dead ends: 1096 [2022-03-18 21:12:23,292 INFO L226 Difference]: Without dead ends: 1096 [2022-03-18 21:12:23,292 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:12:23,293 INFO L912 BasicCegarLoop]: 233 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:23,293 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:12:23,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-03-18 21:12:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-03-18 21:12:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.46012832263978) internal successors, (1593), 1091 states have internal predecessors, (1593), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:23,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1597 transitions. [2022-03-18 21:12:23,302 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1597 transitions. Word has length 167 [2022-03-18 21:12:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:23,303 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1597 transitions. [2022-03-18 21:12:23,303 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1597 transitions. [2022-03-18 21:12:23,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-18 21:12:23,304 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:23,304 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:23,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:12:23,305 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:23,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:23,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2137854178, now seen corresponding path program 1 times [2022-03-18 21:12:23,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:23,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154817407] [2022-03-18 21:12:23,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:23,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-03-18 21:12:23,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:23,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154817407] [2022-03-18 21:12:23,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154817407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:23,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:23,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:23,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675828190] [2022-03-18 21:12:23,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:23,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:23,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:23,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:23,428 INFO L87 Difference]: Start difference. First operand 1096 states and 1597 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:26,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:26,634 INFO L93 Difference]: Finished difference Result 1124 states and 1632 transitions. [2022-03-18 21:12:26,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:26,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-18 21:12:26,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:26,639 INFO L225 Difference]: With dead ends: 1124 [2022-03-18 21:12:26,639 INFO L226 Difference]: Without dead ends: 1124 [2022-03-18 21:12:26,639 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:26,639 INFO L912 BasicCegarLoop]: 256 mSDtfsCounter, 44 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:26,640 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 647 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 21:12:26,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-03-18 21:12:26,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1096. [2022-03-18 21:12:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.458295142071494) internal successors, (1591), 1091 states have internal predecessors, (1591), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1595 transitions. [2022-03-18 21:12:26,649 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1595 transitions. Word has length 168 [2022-03-18 21:12:26,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:26,649 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1595 transitions. [2022-03-18 21:12:26,649 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1595 transitions. [2022-03-18 21:12:26,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-03-18 21:12:26,650 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:26,650 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:26,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:12:26,651 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:26,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:26,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1150460582, now seen corresponding path program 1 times [2022-03-18 21:12:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:26,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937774696] [2022-03-18 21:12:26,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:12:26,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:26,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937774696] [2022-03-18 21:12:26,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937774696] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:26,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:26,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:12:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899060573] [2022-03-18 21:12:26,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:26,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:12:26,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:26,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:12:26,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:12:26,785 INFO L87 Difference]: Start difference. First operand 1096 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:29,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:31,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:33,171 INFO L93 Difference]: Finished difference Result 1262 states and 1818 transitions. [2022-03-18 21:12:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:12:33,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 170 [2022-03-18 21:12:33,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:33,174 INFO L225 Difference]: With dead ends: 1262 [2022-03-18 21:12:33,174 INFO L226 Difference]: Without dead ends: 1262 [2022-03-18 21:12:33,174 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:12:33,175 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 131 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:33,175 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 412 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-18 21:12:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2022-03-18 21:12:33,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1096. [2022-03-18 21:12:33,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.454628780934922) internal successors, (1587), 1091 states have internal predecessors, (1587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1591 transitions. [2022-03-18 21:12:33,187 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1591 transitions. Word has length 170 [2022-03-18 21:12:33,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:33,187 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1591 transitions. [2022-03-18 21:12:33,187 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:33,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1591 transitions. [2022-03-18 21:12:33,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-18 21:12:33,189 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:33,189 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:33,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:12:33,189 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1610206959, now seen corresponding path program 1 times [2022-03-18 21:12:33,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:33,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879526923] [2022-03-18 21:12:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:33,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:33,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:33,614 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-18 21:12:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879526923] [2022-03-18 21:12:33,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879526923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:12:33,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:12:33,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:12:33,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455405610] [2022-03-18 21:12:33,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:12:33,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:12:33,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:12:33,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:12:33,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:12:33,616 INFO L87 Difference]: Start difference. First operand 1096 states and 1591 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:34,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:36,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:38,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:40,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:42,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:12:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:12:42,979 INFO L93 Difference]: Finished difference Result 1104 states and 1601 transitions. [2022-03-18 21:12:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:12:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 180 [2022-03-18 21:12:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:12:42,982 INFO L225 Difference]: With dead ends: 1104 [2022-03-18 21:12:42,982 INFO L226 Difference]: Without dead ends: 1096 [2022-03-18 21:12:42,982 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-18 21:12:42,982 INFO L912 BasicCegarLoop]: 231 mSDtfsCounter, 7 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:12:42,982 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 952 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2022-03-18 21:12:42,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-03-18 21:12:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2022-03-18 21:12:42,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1091 states have (on average 1.453712190650779) internal successors, (1586), 1091 states have internal predecessors, (1586), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1590 transitions. [2022-03-18 21:12:42,992 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1590 transitions. Word has length 180 [2022-03-18 21:12:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:12:42,993 INFO L478 AbstractCegarLoop]: Abstraction has 1096 states and 1590 transitions. [2022-03-18 21:12:42,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:12:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1590 transitions. [2022-03-18 21:12:42,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-03-18 21:12:42,994 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:12:42,994 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:12:42,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:12:42,994 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:12:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:12:42,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2025533776, now seen corresponding path program 1 times [2022-03-18 21:12:42,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:12:42,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137174572] [2022-03-18 21:12:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:12:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:12:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 169 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-18 21:12:44,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:12:44,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137174572] [2022-03-18 21:12:44,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137174572] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:12:44,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334330886] [2022-03-18 21:12:44,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:12:44,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:12:44,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:12:44,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-18 21:12:44,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-18 21:12:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:12:45,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 183 conjunts are in the unsatisfiable core [2022-03-18 21:12:45,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:12:46,490 INFO L356 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-03-18 21:12:46,491 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 1 new quantified variables, introduced 5 case distinctions, treesize of input 25885 treesize of output 24049 [2022-03-18 21:12:46,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:12:46,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10871 treesize of output 1824