/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.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-18 21:20:50,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 21:20:50,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 21:20:50,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-18 21:20:50,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-18 21:20:50,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-18 21:20:50,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-18 21:20:50,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-18 21:20:50,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-18 21:20:50,443 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-18 21:20:50,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-18 21:20:50,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-18 21:20:50,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-18 21:20:50,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-18 21:20:50,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-18 21:20:50,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-18 21:20:50,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-18 21:20:50,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-18 21:20:50,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-18 21:20:50,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-18 21:20:50,454 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-18 21:20:50,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-18 21:20:50,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-18 21:20:50,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-18 21:20:50,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-18 21:20:50,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-18 21:20:50,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-18 21:20:50,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-18 21:20:50,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-18 21:20:50,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-18 21:20:50,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-18 21:20:50,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-18 21:20:50,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-18 21:20:50,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-18 21:20:50,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-18 21:20:50,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-18 21:20:50,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-18 21:20:50,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-18 21:20:50,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-18 21:20:50,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 21:20:50,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 21:20:50,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 21:20:50,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-18 21:20:50,482 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 21:20:50,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 21:20:50,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 21:20:50,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 21:20:50,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:20:50,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 21:20:50,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-18 21:20:50,486 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-18 21:20:50,486 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 21:20:50,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 21:20:50,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 21:20:50,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 21:20:50,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 21:20:50,689 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 21:20:50,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-18 21:20:50,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a04cba42/455b7a6667f14409bfb8db5e4e31da89/FLAGb2d70a7f0 [2022-03-18 21:20:51,216 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 21:20:51,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-03-18 21:20:51,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a04cba42/455b7a6667f14409bfb8db5e4e31da89/FLAGb2d70a7f0 [2022-03-18 21:20:51,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a04cba42/455b7a6667f14409bfb8db5e4e31da89 [2022-03-18 21:20:51,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 21:20:51,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-18 21:20:51,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 21:20:51,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 21:20:51,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 21:20:51,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d05cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51, skipping insertion in model container [2022-03-18 21:20:51,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 21:20:51,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 21:20:51,592 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.15.i.cil-1.c[75550,75563] [2022-03-18 21:20:51,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:20:51,608 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 21:20:51,709 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.15.i.cil-1.c[75550,75563] [2022-03-18 21:20:51,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 21:20:51,756 INFO L208 MainTranslator]: Completed translation [2022-03-18 21:20:51,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51 WrapperNode [2022-03-18 21:20:51,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 21:20:51,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 21:20:51,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 21:20:51,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 21:20:51,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 21:20:51,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 21:20:51,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 21:20:51,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 21:20:51,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (1/1) ... [2022-03-18 21:20:51,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 21:20:51,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:20:51,910 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 21:20:51,928 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 21:20:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 21:20:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-18 21:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-18 21:20:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-18 21:20:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 21:20:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-18 21:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 21:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 21:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 21:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-18 21:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-18 21:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-18 21:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-18 21:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 21:20:52,058 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 21:20:52,059 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 21:20:52,727 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-18 21:20:53,195 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-18 21:20:53,195 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-18 21:20:53,208 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 21:20:53,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 21:20:53,215 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 21:20:53,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:20:53 BoogieIcfgContainer [2022-03-18 21:20:53,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 21:20:53,217 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-18 21:20:53,217 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-18 21:20:53,218 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-18 21:20:53,220 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:20:53" (1/1) ... [2022-03-18 21:20:53,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:20:53 BasicIcfg [2022-03-18 21:20:53,266 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-18 21:20:53,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 21:20:53,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 21:20:53,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 21:20:53,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 09:20:51" (1/4) ... [2022-03-18 21:20:53,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e60ddb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:20:53, skipping insertion in model container [2022-03-18 21:20:53,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 09:20:51" (2/4) ... [2022-03-18 21:20:53,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e60ddb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 09:20:53, skipping insertion in model container [2022-03-18 21:20:53,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 09:20:53" (3/4) ... [2022-03-18 21:20:53,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e60ddb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 09:20:53, skipping insertion in model container [2022-03-18 21:20:53,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 18.03 09:20:53" (4/4) ... [2022-03-18 21:20:53,274 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.cJordan [2022-03-18 21:20:53,278 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-18 21:20:53,278 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 21:20:53,320 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 21:20:53,325 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 21:20:53,325 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 21:20:53,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-18 21:20:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-18 21:20:53,356 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:20:53,356 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:20:53,356 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:20:53,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:20:53,360 INFO L85 PathProgramCache]: Analyzing trace with hash 588345913, now seen corresponding path program 1 times [2022-03-18 21:20:53,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:20:53,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757889102] [2022-03-18 21:20:53,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:20:53,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:20:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:20:53,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:20:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:20:53,846 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 21:20:53,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:20:53,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757889102] [2022-03-18 21:20:53,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757889102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:20:53,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:20:53,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:20:53,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168788223] [2022-03-18 21:20:53,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:20:53,854 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:20:53,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:20:53,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:20:53,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:20:53,880 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:20:56,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:20:56,317 INFO L93 Difference]: Finished difference Result 291 states and 485 transitions. [2022-03-18 21:20:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:20:56,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-03-18 21:20:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:20:56,328 INFO L225 Difference]: With dead ends: 291 [2022-03-18 21:20:56,328 INFO L226 Difference]: Without dead ends: 265 [2022-03-18 21:20:56,329 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 21:20:56,331 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 156 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:20:56,332 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:20:56,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-18 21:20:56,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 185. [2022-03-18 21:20:56,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:20:56,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-03-18 21:20:56,364 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 50 [2022-03-18 21:20:56,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:20:56,365 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-03-18 21:20:56,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:20:56,365 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-03-18 21:20:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-18 21:20:56,367 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:20:56,367 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 21:20:56,367 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 21:20:56,367 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:20:56,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:20:56,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1971108142, now seen corresponding path program 1 times [2022-03-18 21:20:56,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:20:56,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591293957] [2022-03-18 21:20:56,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:20:56,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:20:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:20:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:20:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:20:56,481 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 21:20:56,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:20:56,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591293957] [2022-03-18 21:20:56,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591293957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:20:56,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:20:56,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:20:56,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094057704] [2022-03-18 21:20:56,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:20:56,482 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:20:56,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:20:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:20:56,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:20:56,483 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:20:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:20:59,901 INFO L93 Difference]: Finished difference Result 213 states and 334 transitions. [2022-03-18 21:20:59,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:20:59,901 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 21:20:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:20:59,903 INFO L225 Difference]: With dead ends: 213 [2022-03-18 21:20:59,903 INFO L226 Difference]: Without dead ends: 213 [2022-03-18 21:20:59,903 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 21:20:59,904 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:20:59,905 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 21:20:59,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-18 21:20:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-18 21:20:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:20:59,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-03-18 21:20:59,914 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 51 [2022-03-18 21:20:59,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:20:59,914 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-03-18 21:20:59,914 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 21:20:59,915 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-03-18 21:20:59,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-03-18 21:20:59,916 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:20:59,916 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] [2022-03-18 21:20:59,916 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 21:20:59,916 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:20:59,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:20:59,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1308484506, now seen corresponding path program 1 times [2022-03-18 21:20:59,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:20:59,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782300644] [2022-03-18 21:20:59,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:20:59,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:00,063 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 21:21:00,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:00,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782300644] [2022-03-18 21:21:00,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782300644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:00,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:00,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:00,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923793616] [2022-03-18 21:21:00,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:00,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:00,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:00,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:00,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:00,065 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:02,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:02,419 INFO L93 Difference]: Finished difference Result 213 states and 333 transitions. [2022-03-18 21:21:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:02,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-03-18 21:21:02,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:02,421 INFO L225 Difference]: With dead ends: 213 [2022-03-18 21:21:02,421 INFO L226 Difference]: Without dead ends: 213 [2022-03-18 21:21:02,421 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 21:21:02,422 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:02,422 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:21:02,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-03-18 21:21:02,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-03-18 21:21:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:02,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-03-18 21:21:02,429 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 64 [2022-03-18 21:21:02,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:02,429 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-03-18 21:21:02,429 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:02,429 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-03-18 21:21:02,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:21:02,431 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:02,436 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] [2022-03-18 21:21:02,436 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-18 21:21:02,436 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:02,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1918189260, now seen corresponding path program 1 times [2022-03-18 21:21:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:02,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447068328] [2022-03-18 21:21:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:02,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:02,556 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 21:21:02,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:02,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447068328] [2022-03-18 21:21:02,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447068328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:02,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:02,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451900213] [2022-03-18 21:21:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:02,557 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:02,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:02,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:02,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:02,557 INFO L87 Difference]: Start difference. First operand 196 states and 312 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 21:21:04,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:04,607 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-03-18 21:21:04,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:04,608 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 21:21:04,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:04,609 INFO L225 Difference]: With dead ends: 212 [2022-03-18 21:21:04,609 INFO L226 Difference]: Without dead ends: 212 [2022-03-18 21:21:04,609 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 21:21:04,610 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:04,610 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-18 21:21:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-18 21:21:04,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-03-18 21:21:04,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:04,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-03-18 21:21:04,617 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 65 [2022-03-18 21:21:04,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:04,617 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-03-18 21:21:04,617 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 21:21:04,617 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-03-18 21:21:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:21:04,619 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:04,619 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] [2022-03-18 21:21:04,619 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-18 21:21:04,620 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash -956367596, now seen corresponding path program 1 times [2022-03-18 21:21:04,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:04,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495134136] [2022-03-18 21:21:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:04,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:04,719 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 21:21:04,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:04,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495134136] [2022-03-18 21:21:04,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495134136] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:04,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:04,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:04,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331257030] [2022-03-18 21:21:04,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:04,722 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:04,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:04,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:04,724 INFO L87 Difference]: Start difference. First operand 196 states and 311 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 21:21:07,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:07,509 INFO L93 Difference]: Finished difference Result 315 states and 494 transitions. [2022-03-18 21:21:07,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:07,510 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 21:21:07,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:07,511 INFO L225 Difference]: With dead ends: 315 [2022-03-18 21:21:07,511 INFO L226 Difference]: Without dead ends: 315 [2022-03-18 21:21:07,511 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 21:21:07,512 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:07,512 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:21:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-18 21:21:07,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 208. [2022-03-18 21:21:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-03-18 21:21:07,520 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 65 [2022-03-18 21:21:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:07,520 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-03-18 21:21:07,520 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 21:21:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-03-18 21:21:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:21:07,521 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:07,522 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] [2022-03-18 21:21:07,522 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-18 21:21:07,522 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:07,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:07,522 INFO L85 PathProgramCache]: Analyzing trace with hash 631343316, now seen corresponding path program 1 times [2022-03-18 21:21:07,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:07,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646909159] [2022-03-18 21:21:07,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:07,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:07,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:07,619 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 21:21:07,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:07,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646909159] [2022-03-18 21:21:07,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646909159] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:07,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:07,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:07,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549834005] [2022-03-18 21:21:07,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:07,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:07,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:07,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:07,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:07,622 INFO L87 Difference]: Start difference. First operand 208 states and 327 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 21:21:08,658 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 21:21:10,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:12,451 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:12,757 INFO L93 Difference]: Finished difference Result 222 states and 344 transitions. [2022-03-18 21:21:12,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:12,758 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 21:21:12,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:12,759 INFO L225 Difference]: With dead ends: 222 [2022-03-18 21:21:12,759 INFO L226 Difference]: Without dead ends: 222 [2022-03-18 21:21:12,759 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 21:21:12,760 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:12,760 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 507 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-03-18 21:21:12,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-18 21:21:12,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 208. [2022-03-18 21:21:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5862068965517242) internal successors, (322), 203 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 326 transitions. [2022-03-18 21:21:12,766 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 326 transitions. Word has length 65 [2022-03-18 21:21:12,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:12,766 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 326 transitions. [2022-03-18 21:21:12,766 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 21:21:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 326 transitions. [2022-03-18 21:21:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-03-18 21:21:12,767 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:12,767 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] [2022-03-18 21:21:12,768 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-18 21:21:12,768 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1301074508, now seen corresponding path program 1 times [2022-03-18 21:21:12,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:12,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871644234] [2022-03-18 21:21:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:12,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:12,864 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 21:21:12,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:12,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871644234] [2022-03-18 21:21:12,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871644234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:12,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:12,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:12,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382617301] [2022-03-18 21:21:12,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:12,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:12,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:12,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:12,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:12,866 INFO L87 Difference]: Start difference. First operand 208 states and 326 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 21:21:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:15,841 INFO L93 Difference]: Finished difference Result 314 states and 489 transitions. [2022-03-18 21:21:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:15,842 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 21:21:15,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:15,867 INFO L225 Difference]: With dead ends: 314 [2022-03-18 21:21:15,867 INFO L226 Difference]: Without dead ends: 314 [2022-03-18 21:21:15,867 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 21:21:15,871 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:15,871 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:21:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-18 21:21:15,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-03-18 21:21:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5837320574162679) internal successors, (331), 209 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:15,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 335 transitions. [2022-03-18 21:21:15,877 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 335 transitions. Word has length 65 [2022-03-18 21:21:15,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:15,877 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 335 transitions. [2022-03-18 21:21:15,877 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 21:21:15,877 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 335 transitions. [2022-03-18 21:21:15,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-18 21:21:15,878 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:15,878 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] [2022-03-18 21:21:15,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-18 21:21:15,879 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:15,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:15,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1470127014, now seen corresponding path program 1 times [2022-03-18 21:21:15,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:15,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444029255] [2022-03-18 21:21:15,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:15,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:15,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:16,002 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 21:21:16,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:16,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444029255] [2022-03-18 21:21:16,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444029255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:16,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:16,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:16,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977904165] [2022-03-18 21:21:16,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:16,003 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:16,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:16,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:16,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:16,004 INFO L87 Difference]: Start difference. First operand 214 states and 335 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 21:21:17,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:19,599 INFO L93 Difference]: Finished difference Result 227 states and 351 transitions. [2022-03-18 21:21:19,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:19,600 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 21:21:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:19,601 INFO L225 Difference]: With dead ends: 227 [2022-03-18 21:21:19,601 INFO L226 Difference]: Without dead ends: 227 [2022-03-18 21:21:19,601 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 21:21:19,602 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:19,602 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 21:21:19,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-18 21:21:19,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-03-18 21:21:19,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5789473684210527) internal successors, (330), 209 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:19,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 334 transitions. [2022-03-18 21:21:19,606 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 334 transitions. Word has length 66 [2022-03-18 21:21:19,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:19,607 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 334 transitions. [2022-03-18 21:21:19,607 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 21:21:19,609 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 334 transitions. [2022-03-18 21:21:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-18 21:21:19,610 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:19,610 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] [2022-03-18 21:21:19,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-18 21:21:19,611 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:19,611 INFO L85 PathProgramCache]: Analyzing trace with hash -633442992, now seen corresponding path program 1 times [2022-03-18 21:21:19,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:19,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990469296] [2022-03-18 21:21:19,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:19,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:19,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:19,722 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 21:21:19,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:19,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990469296] [2022-03-18 21:21:19,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990469296] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:19,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:19,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:19,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842583823] [2022-03-18 21:21:19,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:19,723 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:19,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:19,724 INFO L87 Difference]: Start difference. First operand 214 states and 334 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 21:21:21,743 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 21:21:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:22,233 INFO L93 Difference]: Finished difference Result 314 states and 485 transitions. [2022-03-18 21:21:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:22,233 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 21:21:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:22,235 INFO L225 Difference]: With dead ends: 314 [2022-03-18 21:21:22,235 INFO L226 Difference]: Without dead ends: 314 [2022-03-18 21:21:22,235 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 21:21:22,235 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:22,236 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:21:22,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-18 21:21:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-03-18 21:21:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:22,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-03-18 21:21:22,241 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 67 [2022-03-18 21:21:22,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:22,242 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-03-18 21:21:22,242 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 21:21:22,242 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-03-18 21:21:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:21:22,243 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:22,243 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:22,243 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-18 21:21:22,243 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1852266313, now seen corresponding path program 1 times [2022-03-18 21:21:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:22,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296040460] [2022-03-18 21:21:22,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:22,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:21:22,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:22,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296040460] [2022-03-18 21:21:22,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296040460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:22,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:22,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:22,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243002048] [2022-03-18 21:21:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:22,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:22,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:22,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:22,331 INFO L87 Difference]: Start difference. First operand 214 states and 331 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 21:21:24,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:25,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:26,902 INFO L93 Difference]: Finished difference Result 314 states and 482 transitions. [2022-03-18 21:21:26,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:26,903 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 21:21:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:26,904 INFO L225 Difference]: With dead ends: 314 [2022-03-18 21:21:26,904 INFO L226 Difference]: Without dead ends: 314 [2022-03-18 21:21:26,904 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 21:21:26,905 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:26,905 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 21:21:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-03-18 21:21:26,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-03-18 21:21:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 209 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 328 transitions. [2022-03-18 21:21:26,910 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 328 transitions. Word has length 68 [2022-03-18 21:21:26,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:26,910 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 328 transitions. [2022-03-18 21:21:26,910 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 21:21:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 328 transitions. [2022-03-18 21:21:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-18 21:21:26,911 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:26,915 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] [2022-03-18 21:21:26,916 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-18 21:21:26,916 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:26,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:26,917 INFO L85 PathProgramCache]: Analyzing trace with hash 416669672, now seen corresponding path program 1 times [2022-03-18 21:21:26,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:26,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461264181] [2022-03-18 21:21:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:26,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:27,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:27,037 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 21:21:27,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:27,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461264181] [2022-03-18 21:21:27,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461264181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:27,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:27,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:27,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641221942] [2022-03-18 21:21:27,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:27,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:27,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:27,039 INFO L87 Difference]: Start difference. First operand 214 states and 328 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 21:21:28,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:29,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:31,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:31,605 INFO L93 Difference]: Finished difference Result 256 states and 388 transitions. [2022-03-18 21:21:31,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:31,606 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 21:21:31,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:31,607 INFO L225 Difference]: With dead ends: 256 [2022-03-18 21:21:31,607 INFO L226 Difference]: Without dead ends: 256 [2022-03-18 21:21:31,607 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 21:21:31,608 INFO L912 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:31,608 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 21:21:31,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-18 21:21:31,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2022-03-18 21:21:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 231 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 362 transitions. [2022-03-18 21:21:31,612 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 362 transitions. Word has length 68 [2022-03-18 21:21:31,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:31,612 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 362 transitions. [2022-03-18 21:21:31,613 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 21:21:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 362 transitions. [2022-03-18 21:21:31,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-18 21:21:31,613 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:31,613 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:31,613 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-18 21:21:31,614 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1437140192, now seen corresponding path program 1 times [2022-03-18 21:21:31,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:31,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308293663] [2022-03-18 21:21:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:31,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:31,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:21:31,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:31,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308293663] [2022-03-18 21:21:31,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308293663] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:31,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:31,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:31,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194387811] [2022-03-18 21:21:31,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:31,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:31,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:31,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:31,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:31,726 INFO L87 Difference]: Start difference. First operand 236 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:35,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:35,156 INFO L93 Difference]: Finished difference Result 375 states and 581 transitions. [2022-03-18 21:21:35,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:35,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-03-18 21:21:35,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:35,158 INFO L225 Difference]: With dead ends: 375 [2022-03-18 21:21:35,158 INFO L226 Difference]: Without dead ends: 375 [2022-03-18 21:21:35,159 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 21:21:35,159 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 144 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:35,159 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 604 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 21:21:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-03-18 21:21:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 252. [2022-03-18 21:21:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.534412955465587) internal successors, (379), 247 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 383 transitions. [2022-03-18 21:21:35,164 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 383 transitions. Word has length 81 [2022-03-18 21:21:35,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:35,164 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 383 transitions. [2022-03-18 21:21:35,164 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:35,164 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 383 transitions. [2022-03-18 21:21:35,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-18 21:21:35,165 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:35,165 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:35,165 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-18 21:21:35,165 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:35,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208978, now seen corresponding path program 1 times [2022-03-18 21:21:35,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:35,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480094932] [2022-03-18 21:21:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-18 21:21:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:35,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480094932] [2022-03-18 21:21:35,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480094932] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:35,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:35,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741886621] [2022-03-18 21:21:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:35,262 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:35,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:35,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:35,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:35,263 INFO L87 Difference]: Start difference. First operand 252 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:38,294 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 21:21:40,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:40,731 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-03-18 21:21:40,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-18 21:21:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:40,732 INFO L225 Difference]: With dead ends: 265 [2022-03-18 21:21:40,732 INFO L226 Difference]: Without dead ends: 265 [2022-03-18 21:21:40,733 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 21:21:40,733 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:40,733 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 590 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-03-18 21:21:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-18 21:21:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 252. [2022-03-18 21:21:40,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 382 transitions. [2022-03-18 21:21:40,738 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 382 transitions. Word has length 82 [2022-03-18 21:21:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:40,739 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 382 transitions. [2022-03-18 21:21:40,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 382 transitions. [2022-03-18 21:21:40,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-18 21:21:40,740 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:40,740 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:40,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-18 21:21:40,740 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:40,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:40,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1416323598, now seen corresponding path program 1 times [2022-03-18 21:21:40,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:40,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716324695] [2022-03-18 21:21:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:21:40,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:40,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716324695] [2022-03-18 21:21:40,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716324695] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:40,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:40,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860167170] [2022-03-18 21:21:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:40,858 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:40,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:40,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:40,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:40,859 INFO L87 Difference]: Start difference. First operand 252 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:42,488 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 21:21:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:43,771 INFO L93 Difference]: Finished difference Result 352 states and 533 transitions. [2022-03-18 21:21:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-18 21:21:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:43,772 INFO L225 Difference]: With dead ends: 352 [2022-03-18 21:21:43,772 INFO L226 Difference]: Without dead ends: 352 [2022-03-18 21:21:43,773 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 21:21:43,773 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:43,773 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 21:21:43,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-03-18 21:21:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 252. [2022-03-18 21:21:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 379 transitions. [2022-03-18 21:21:43,778 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 379 transitions. Word has length 82 [2022-03-18 21:21:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:43,778 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 379 transitions. [2022-03-18 21:21:43,778 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 379 transitions. [2022-03-18 21:21:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-18 21:21:43,779 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:43,779 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:43,779 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-18 21:21:43,780 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:43,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1457894331, now seen corresponding path program 1 times [2022-03-18 21:21:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:43,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392728212] [2022-03-18 21:21:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-18 21:21:43,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:43,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392728212] [2022-03-18 21:21:43,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392728212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:43,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:43,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 21:21:43,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092731409] [2022-03-18 21:21:43,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:43,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 21:21:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 21:21:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:21:43,900 INFO L87 Difference]: Start difference. First operand 252 states and 379 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:47,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:48,847 WARN L534 Checker$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 21:21:49,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:49,184 INFO L93 Difference]: Finished difference Result 261 states and 390 transitions. [2022-03-18 21:21:49,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 21:21:49,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-18 21:21:49,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:49,185 INFO L225 Difference]: With dead ends: 261 [2022-03-18 21:21:49,185 INFO L226 Difference]: Without dead ends: 261 [2022-03-18 21:21:49,185 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 21:21:49,186 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:49,186 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 21:21:49,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-03-18 21:21:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-03-18 21:21:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5078125) internal successors, (386), 256 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 390 transitions. [2022-03-18 21:21:49,190 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 390 transitions. Word has length 83 [2022-03-18 21:21:49,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:49,190 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 390 transitions. [2022-03-18 21:21:49,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 390 transitions. [2022-03-18 21:21:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-18 21:21:49,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:49,191 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:49,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-18 21:21:49,191 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:49,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:49,191 INFO L85 PathProgramCache]: Analyzing trace with hash -565644653, now seen corresponding path program 1 times [2022-03-18 21:21:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:49,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114734838] [2022-03-18 21:21:49,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:49,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 21:21:49,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:49,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114734838] [2022-03-18 21:21:49,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114734838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:49,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:49,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:49,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170387830] [2022-03-18 21:21:49,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:49,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:49,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:49,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:49,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:49,298 INFO L87 Difference]: Start difference. First operand 261 states and 390 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 21:21:51,559 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 21:21:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:53,448 INFO L93 Difference]: Finished difference Result 360 states and 538 transitions. [2022-03-18 21:21:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:53,449 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 84 [2022-03-18 21:21:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:53,450 INFO L225 Difference]: With dead ends: 360 [2022-03-18 21:21:53,450 INFO L226 Difference]: Without dead ends: 360 [2022-03-18 21:21:53,450 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 21:21:53,451 INFO L912 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:53,451 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-18 21:21:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-18 21:21:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 261. [2022-03-18 21:21:53,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.4921875) internal successors, (382), 256 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:53,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2022-03-18 21:21:53,455 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 84 [2022-03-18 21:21:53,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:53,456 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2022-03-18 21:21:53,456 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 21:21:53,456 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2022-03-18 21:21:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-18 21:21:53,456 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:53,457 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:53,457 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-18 21:21:53,457 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:53,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash 681592199, now seen corresponding path program 1 times [2022-03-18 21:21:53,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:53,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812829717] [2022-03-18 21:21:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:53,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:21:53,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:53,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812829717] [2022-03-18 21:21:53,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812829717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:53,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:53,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:53,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574095188] [2022-03-18 21:21:53,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:53,561 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:53,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:53,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:53,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:53,561 INFO L87 Difference]: Start difference. First operand 261 states and 386 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:55,976 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 21:21:57,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:21:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:21:58,422 INFO L93 Difference]: Finished difference Result 358 states and 530 transitions. [2022-03-18 21:21:58,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:21:58,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-18 21:21:58,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:21:58,424 INFO L225 Difference]: With dead ends: 358 [2022-03-18 21:21:58,424 INFO L226 Difference]: Without dead ends: 358 [2022-03-18 21:21:58,424 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 21:21:58,424 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 80 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:21:58,424 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 513 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 21:21:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-03-18 21:21:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 303. [2022-03-18 21:21:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 298 states have (on average 1.5100671140939597) internal successors, (450), 298 states have internal predecessors, (450), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:58,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 454 transitions. [2022-03-18 21:21:58,429 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 454 transitions. Word has length 90 [2022-03-18 21:21:58,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:21:58,429 INFO L478 AbstractCegarLoop]: Abstraction has 303 states and 454 transitions. [2022-03-18 21:21:58,429 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:58,429 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 454 transitions. [2022-03-18 21:21:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-18 21:21:58,430 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:21:58,430 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:21:58,430 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-18 21:21:58,430 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:21:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:21:58,431 INFO L85 PathProgramCache]: Analyzing trace with hash 805665446, now seen corresponding path program 1 times [2022-03-18 21:21:58,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:21:58,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983714740] [2022-03-18 21:21:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:21:58,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:21:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:21:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:21:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-18 21:21:58,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:21:58,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983714740] [2022-03-18 21:21:58,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983714740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:21:58,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:21:58,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:21:58,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350715286] [2022-03-18 21:21:58,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:21:58,537 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:21:58,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:21:58,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:21:58,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:21:58,537 INFO L87 Difference]: Start difference. First operand 303 states and 454 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:21:59,587 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 21:22:01,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:02,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:02,995 INFO L93 Difference]: Finished difference Result 402 states and 605 transitions. [2022-03-18 21:22:02,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:02,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-03-18 21:22:02,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:02,997 INFO L225 Difference]: With dead ends: 402 [2022-03-18 21:22:02,997 INFO L226 Difference]: Without dead ends: 402 [2022-03-18 21:22:02,997 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 21:22:02,998 INFO L912 BasicCegarLoop]: 137 mSDtfsCounter, 117 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:02,998 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 388 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-18 21:22:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-18 21:22:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 283. [2022-03-18 21:22:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5287769784172662) internal successors, (425), 278 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 429 transitions. [2022-03-18 21:22:03,002 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 429 transitions. Word has length 90 [2022-03-18 21:22:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:03,003 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 429 transitions. [2022-03-18 21:22:03,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 429 transitions. [2022-03-18 21:22:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-18 21:22:03,003 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:03,003 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] [2022-03-18 21:22:03,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-18 21:22:03,004 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:03,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1821101810, now seen corresponding path program 1 times [2022-03-18 21:22:03,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:03,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988209150] [2022-03-18 21:22:03,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:03,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:03,147 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 21:22:03,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:03,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988209150] [2022-03-18 21:22:03,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988209150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:03,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:03,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202038406] [2022-03-18 21:22:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:03,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:03,149 INFO L87 Difference]: Start difference. First operand 283 states and 429 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:04,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:07,256 WARN L534 Checker$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 21:22:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:07,694 INFO L93 Difference]: Finished difference Result 377 states and 568 transitions. [2022-03-18 21:22:07,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:07,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-18 21:22:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:07,696 INFO L225 Difference]: With dead ends: 377 [2022-03-18 21:22:07,696 INFO L226 Difference]: Without dead ends: 377 [2022-03-18 21:22:07,696 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 21:22:07,697 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:07,697 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 519 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-18 21:22:07,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-03-18 21:22:07,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 317. [2022-03-18 21:22:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5320512820512822) internal successors, (478), 312 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 482 transitions. [2022-03-18 21:22:07,701 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 482 transitions. Word has length 118 [2022-03-18 21:22:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:07,702 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 482 transitions. [2022-03-18 21:22:07,703 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 482 transitions. [2022-03-18 21:22:07,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-18 21:22:07,704 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:07,704 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] [2022-03-18 21:22:07,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-18 21:22:07,704 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:07,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash -866872915, now seen corresponding path program 1 times [2022-03-18 21:22:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:07,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160421651] [2022-03-18 21:22:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-18 21:22:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:07,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160421651] [2022-03-18 21:22:07,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160421651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:07,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:07,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:07,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720526330] [2022-03-18 21:22:07,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:07,821 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:07,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:07,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:07,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:07,822 INFO L87 Difference]: Start difference. First operand 317 states and 482 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 21:22:10,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:10,374 INFO L93 Difference]: Finished difference Result 362 states and 544 transitions. [2022-03-18 21:22:10,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:10,374 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 118 [2022-03-18 21:22:10,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:10,391 INFO L225 Difference]: With dead ends: 362 [2022-03-18 21:22:10,392 INFO L226 Difference]: Without dead ends: 362 [2022-03-18 21:22:10,392 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 21:22:10,392 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 32 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:10,393 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 613 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-18 21:22:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-03-18 21:22:10,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2022-03-18 21:22:10,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5267857142857142) internal successors, (513), 336 states have internal predecessors, (513), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:10,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 517 transitions. [2022-03-18 21:22:10,398 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 517 transitions. Word has length 118 [2022-03-18 21:22:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:10,398 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 517 transitions. [2022-03-18 21:22:10,398 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 21:22:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 517 transitions. [2022-03-18 21:22:10,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 21:22:10,399 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:10,400 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] [2022-03-18 21:22:10,400 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-18 21:22:10,401 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:10,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash 590170977, now seen corresponding path program 1 times [2022-03-18 21:22:10,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:10,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749632259] [2022-03-18 21:22:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:10,494 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 21:22:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:10,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749632259] [2022-03-18 21:22:10,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749632259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:10,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:10,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:10,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427413916] [2022-03-18 21:22:10,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:10,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:10,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:10,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:10,496 INFO L87 Difference]: Start difference. First operand 341 states and 517 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:12,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:13,414 WARN L534 Checker$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 21:22:14,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:15,405 INFO L93 Difference]: Finished difference Result 348 states and 526 transitions. [2022-03-18 21:22:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:15,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-18 21:22:15,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:15,407 INFO L225 Difference]: With dead ends: 348 [2022-03-18 21:22:15,407 INFO L226 Difference]: Without dead ends: 348 [2022-03-18 21:22:15,407 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 21:22:15,407 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 30 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:15,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 543 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:22:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-18 21:22:15,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-03-18 21:22:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5238095238095237) internal successors, (512), 336 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:15,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2022-03-18 21:22:15,412 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 123 [2022-03-18 21:22:15,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:15,412 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2022-03-18 21:22:15,412 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2022-03-18 21:22:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-18 21:22:15,413 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:15,413 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] [2022-03-18 21:22:15,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-18 21:22:15,413 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:15,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:15,414 INFO L85 PathProgramCache]: Analyzing trace with hash 52353177, now seen corresponding path program 1 times [2022-03-18 21:22:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:15,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072134571] [2022-03-18 21:22:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:15,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:15,513 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 21:22:15,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:15,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072134571] [2022-03-18 21:22:15,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072134571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:15,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:15,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:15,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196367845] [2022-03-18 21:22:15,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:15,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:15,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:15,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:15,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:15,515 INFO L87 Difference]: Start difference. First operand 341 states and 516 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 21:22:19,902 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 21:22:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:20,314 INFO L93 Difference]: Finished difference Result 458 states and 688 transitions. [2022-03-18 21:22:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:20,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-18 21:22:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:20,317 INFO L225 Difference]: With dead ends: 458 [2022-03-18 21:22:20,317 INFO L226 Difference]: Without dead ends: 458 [2022-03-18 21:22:20,317 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 21:22:20,318 INFO L912 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:20,318 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 364 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-18 21:22:20,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-03-18 21:22:20,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 378. [2022-03-18 21:22:20,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5335120643431635) internal successors, (572), 373 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:20,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 576 transitions. [2022-03-18 21:22:20,322 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 576 transitions. Word has length 123 [2022-03-18 21:22:20,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:20,323 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 576 transitions. [2022-03-18 21:22:20,323 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 21:22:20,323 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 576 transitions. [2022-03-18 21:22:20,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-18 21:22:20,324 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:20,324 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] [2022-03-18 21:22:20,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-18 21:22:20,324 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:20,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:20,324 INFO L85 PathProgramCache]: Analyzing trace with hash -857753857, now seen corresponding path program 1 times [2022-03-18 21:22:20,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:20,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122262397] [2022-03-18 21:22:20,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:20,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:20,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:20,434 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 21:22:20,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122262397] [2022-03-18 21:22:20,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122262397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:20,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:20,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:20,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021336440] [2022-03-18 21:22:20,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:20,436 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:20,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:20,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:20,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:20,436 INFO L87 Difference]: Start difference. First operand 378 states and 576 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 21:22:22,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:22,662 INFO L93 Difference]: Finished difference Result 436 states and 658 transitions. [2022-03-18 21:22:22,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:22,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-18 21:22:22,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:22,664 INFO L225 Difference]: With dead ends: 436 [2022-03-18 21:22:22,664 INFO L226 Difference]: Without dead ends: 436 [2022-03-18 21:22:22,664 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:22:22,664 INFO L912 BasicCegarLoop]: 187 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:22,664 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 495 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-18 21:22:22,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-03-18 21:22:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 384. [2022-03-18 21:22:22,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5356200527704484) internal successors, (582), 379 states have internal predecessors, (582), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2022-03-18 21:22:22,670 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 124 [2022-03-18 21:22:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:22,670 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2022-03-18 21:22:22,670 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 21:22:22,670 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2022-03-18 21:22:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-18 21:22:22,671 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:22,671 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:22:22,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-18 21:22:22,671 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:22,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:22,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1073496446, now seen corresponding path program 1 times [2022-03-18 21:22:22,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:22,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399136244] [2022-03-18 21:22:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:22,794 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 21:22:22,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:22,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399136244] [2022-03-18 21:22:22,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399136244] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:22,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:22,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005854051] [2022-03-18 21:22:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:22,794 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:22,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:22,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:22,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:22,795 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:25,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:27,807 WARN L534 Checker$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 21:22:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:28,675 INFO L93 Difference]: Finished difference Result 427 states and 642 transitions. [2022-03-18 21:22:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:28,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-18 21:22:28,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:28,679 INFO L225 Difference]: With dead ends: 427 [2022-03-18 21:22:28,679 INFO L226 Difference]: Without dead ends: 427 [2022-03-18 21:22:28,679 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 21:22:28,683 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 59 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:28,683 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 501 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-18 21:22:28,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-18 21:22:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-03-18 21:22:28,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.531413612565445) internal successors, (585), 382 states have internal predecessors, (585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 589 transitions. [2022-03-18 21:22:28,699 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 589 transitions. Word has length 132 [2022-03-18 21:22:28,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:28,700 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 589 transitions. [2022-03-18 21:22:28,700 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 589 transitions. [2022-03-18 21:22:28,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-18 21:22:28,701 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:28,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:28,701 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-18 21:22:28,701 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:28,702 INFO L85 PathProgramCache]: Analyzing trace with hash 641664460, now seen corresponding path program 1 times [2022-03-18 21:22:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:28,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373528523] [2022-03-18 21:22:28,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:28,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-18 21:22:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:28,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373528523] [2022-03-18 21:22:28,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373528523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:28,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:28,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181130880] [2022-03-18 21:22:28,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:28,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:28,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:28,796 INFO L87 Difference]: Start difference. First operand 387 states and 589 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:29,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:31,038 WARN L534 Checker$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 21:22:33,012 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:33,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:33,396 INFO L93 Difference]: Finished difference Result 427 states and 641 transitions. [2022-03-18 21:22:33,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:33,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-03-18 21:22:33,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:33,398 INFO L225 Difference]: With dead ends: 427 [2022-03-18 21:22:33,398 INFO L226 Difference]: Without dead ends: 427 [2022-03-18 21:22:33,398 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 21:22:33,398 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:33,399 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 513 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-18 21:22:33,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-18 21:22:33,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-03-18 21:22:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5287958115183247) internal successors, (584), 382 states have internal predecessors, (584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:33,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 588 transitions. [2022-03-18 21:22:33,403 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 588 transitions. Word has length 140 [2022-03-18 21:22:33,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:33,403 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 588 transitions. [2022-03-18 21:22:33,403 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 588 transitions. [2022-03-18 21:22:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-03-18 21:22:33,404 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:33,404 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:22:33,405 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-18 21:22:33,405 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:33,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:33,405 INFO L85 PathProgramCache]: Analyzing trace with hash 627414315, now seen corresponding path program 1 times [2022-03-18 21:22:33,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:33,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908059268] [2022-03-18 21:22:33,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:33,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:22:33,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:33,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908059268] [2022-03-18 21:22:33,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908059268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:33,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:33,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:33,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845445958] [2022-03-18 21:22:33,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:33,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:33,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:33,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:33,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:33,498 INFO L87 Difference]: Start difference. First operand 387 states and 588 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 21:22:36,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:36,215 INFO L93 Difference]: Finished difference Result 540 states and 819 transitions. [2022-03-18 21:22:36,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:36,216 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 140 [2022-03-18 21:22:36,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:36,217 INFO L225 Difference]: With dead ends: 540 [2022-03-18 21:22:36,217 INFO L226 Difference]: Without dead ends: 540 [2022-03-18 21:22:36,217 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 21:22:36,218 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 123 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:36,218 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 400 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-18 21:22:36,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-03-18 21:22:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 451. [2022-03-18 21:22:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5358744394618835) internal successors, (685), 446 states have internal predecessors, (685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:36,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 689 transitions. [2022-03-18 21:22:36,223 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 689 transitions. Word has length 140 [2022-03-18 21:22:36,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:36,223 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 689 transitions. [2022-03-18 21:22:36,223 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 21:22:36,223 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 689 transitions. [2022-03-18 21:22:36,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:22:36,224 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:36,224 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] [2022-03-18 21:22:36,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-18 21:22:36,225 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:36,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:36,225 INFO L85 PathProgramCache]: Analyzing trace with hash -946684190, now seen corresponding path program 1 times [2022-03-18 21:22:36,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:36,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635707531] [2022-03-18 21:22:36,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:36,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:36,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:36,314 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 21:22:36,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:36,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635707531] [2022-03-18 21:22:36,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635707531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:36,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:36,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:36,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996145155] [2022-03-18 21:22:36,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:36,315 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:36,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:36,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:36,315 INFO L87 Difference]: Start difference. First operand 451 states and 689 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:38,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:39,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:39,717 INFO L93 Difference]: Finished difference Result 518 states and 777 transitions. [2022-03-18 21:22:39,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:39,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-18 21:22:39,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:39,719 INFO L225 Difference]: With dead ends: 518 [2022-03-18 21:22:39,719 INFO L226 Difference]: Without dead ends: 518 [2022-03-18 21:22:39,719 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 21:22:39,719 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 139 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:39,720 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-18 21:22:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-03-18 21:22:39,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 451. [2022-03-18 21:22:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5179372197309418) internal successors, (677), 446 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:39,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 681 transitions. [2022-03-18 21:22:39,724 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 681 transitions. Word has length 145 [2022-03-18 21:22:39,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:39,725 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 681 transitions. [2022-03-18 21:22:39,725 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:39,725 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 681 transitions. [2022-03-18 21:22:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-18 21:22:39,726 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:39,726 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] [2022-03-18 21:22:39,726 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-18 21:22:39,726 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:39,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:39,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1964442410, now seen corresponding path program 1 times [2022-03-18 21:22:39,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:39,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610776405] [2022-03-18 21:22:39,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:39,817 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 21:22:39,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:39,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610776405] [2022-03-18 21:22:39,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610776405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:39,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:39,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:39,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398393232] [2022-03-18 21:22:39,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:39,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:39,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:39,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:39,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:39,819 INFO L87 Difference]: Start difference. First operand 451 states and 681 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 21:22:41,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:43,763 WARN L534 Checker$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 21:22:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:44,173 INFO L93 Difference]: Finished difference Result 558 states and 834 transitions. [2022-03-18 21:22:44,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:44,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-18 21:22:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:44,175 INFO L225 Difference]: With dead ends: 558 [2022-03-18 21:22:44,176 INFO L226 Difference]: Without dead ends: 558 [2022-03-18 21:22:44,176 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 21:22:44,176 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 119 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:44,176 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 408 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-18 21:22:44,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-18 21:22:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 481. [2022-03-18 21:22:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5084033613445378) internal successors, (718), 476 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:44,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 722 transitions. [2022-03-18 21:22:44,181 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 722 transitions. Word has length 145 [2022-03-18 21:22:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:44,181 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 722 transitions. [2022-03-18 21:22:44,182 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 21:22:44,182 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 722 transitions. [2022-03-18 21:22:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 21:22:44,183 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:44,183 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] [2022-03-18 21:22:44,183 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-18 21:22:44,183 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:44,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:44,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1579019717, now seen corresponding path program 1 times [2022-03-18 21:22:44,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:44,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417663638] [2022-03-18 21:22:44,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:44,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:44,296 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 21:22:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:44,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417663638] [2022-03-18 21:22:44,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417663638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:44,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:44,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585501183] [2022-03-18 21:22:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:44,297 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:44,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:44,298 INFO L87 Difference]: Start difference. First operand 481 states and 722 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 21:22:47,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:49,415 WARN L534 Checker$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 21:22:49,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:49,820 INFO L93 Difference]: Finished difference Result 548 states and 812 transitions. [2022-03-18 21:22:49,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:49,820 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 21:22:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:49,822 INFO L225 Difference]: With dead ends: 548 [2022-03-18 21:22:49,822 INFO L226 Difference]: Without dead ends: 548 [2022-03-18 21:22:49,822 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 21:22:49,822 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:49,822 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-18 21:22:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-18 21:22:49,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-03-18 21:22:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.495798319327731) internal successors, (712), 476 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:49,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2022-03-18 21:22:49,830 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 146 [2022-03-18 21:22:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:49,831 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2022-03-18 21:22:49,831 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 21:22:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2022-03-18 21:22:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-18 21:22:49,832 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:49,832 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] [2022-03-18 21:22:49,832 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-18 21:22:49,832 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1397412188, now seen corresponding path program 1 times [2022-03-18 21:22:49,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:49,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376438137] [2022-03-18 21:22:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:49,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:49,934 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:22:49,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:49,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376438137] [2022-03-18 21:22:49,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376438137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:49,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:49,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:49,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819122640] [2022-03-18 21:22:49,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:49,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:49,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:49,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:49,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:49,936 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 21:22:52,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:22:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:52,727 INFO L93 Difference]: Finished difference Result 548 states and 810 transitions. [2022-03-18 21:22:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 146 [2022-03-18 21:22:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:52,729 INFO L225 Difference]: With dead ends: 548 [2022-03-18 21:22:52,730 INFO L226 Difference]: Without dead ends: 548 [2022-03-18 21:22:52,730 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 21:22:52,730 INFO L912 BasicCegarLoop]: 147 mSDtfsCounter, 110 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:52,730 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-18 21:22:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-18 21:22:52,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-03-18 21:22:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4915966386554622) internal successors, (710), 476 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 21:22:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 714 transitions. [2022-03-18 21:22:52,738 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 714 transitions. Word has length 146 [2022-03-18 21:22:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:52,738 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 714 transitions. [2022-03-18 21:22:52,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 21:22:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 714 transitions. [2022-03-18 21:22:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-18 21:22:52,740 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:52,740 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] [2022-03-18 21:22:52,740 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-18 21:22:52,740 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:52,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:52,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1522661907, now seen corresponding path program 1 times [2022-03-18 21:22:52,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:52,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098708223] [2022-03-18 21:22:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:52,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:52,911 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 21:22:52,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:52,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098708223] [2022-03-18 21:22:52,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098708223] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:52,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:52,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980665510] [2022-03-18 21:22:52,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:52,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:52,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:52,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:52,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:52,913 INFO L87 Difference]: Start difference. First operand 481 states and 714 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 21:22:55,194 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 21:22:57,211 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 21:22:58,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:22:58,254 INFO L93 Difference]: Finished difference Result 509 states and 752 transitions. [2022-03-18 21:22:58,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:22:58,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-18 21:22:58,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:22:58,256 INFO L225 Difference]: With dead ends: 509 [2022-03-18 21:22:58,256 INFO L226 Difference]: Without dead ends: 509 [2022-03-18 21:22:58,256 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 21:22:58,257 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 60 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:22:58,257 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 529 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-18 21:22:58,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-03-18 21:22:58,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 481. [2022-03-18 21:22:58,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4894957983193278) internal successors, (709), 476 states have internal predecessors, (709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:22:58,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 713 transitions. [2022-03-18 21:22:58,262 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 713 transitions. Word has length 148 [2022-03-18 21:22:58,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:22:58,262 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 713 transitions. [2022-03-18 21:22:58,262 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 21:22:58,262 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 713 transitions. [2022-03-18 21:22:58,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-18 21:22:58,264 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:22:58,264 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, 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 21:22:58,264 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-18 21:22:58,264 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:22:58,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:22:58,265 INFO L85 PathProgramCache]: Analyzing trace with hash -109907680, now seen corresponding path program 1 times [2022-03-18 21:22:58,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:22:58,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988799430] [2022-03-18 21:22:58,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:22:58,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:22:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:22:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:22:58,366 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 21:22:58,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:22:58,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988799430] [2022-03-18 21:22:58,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988799430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:22:58,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:22:58,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:22:58,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836128231] [2022-03-18 21:22:58,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:22:58,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:22:58,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:22:58,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:22:58,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:22:58,368 INFO L87 Difference]: Start difference. First operand 481 states and 713 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 21:23:00,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:00,742 INFO L93 Difference]: Finished difference Result 548 states and 802 transitions. [2022-03-18 21:23:00,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:00,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-18 21:23:00,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:00,744 INFO L225 Difference]: With dead ends: 548 [2022-03-18 21:23:00,744 INFO L226 Difference]: Without dead ends: 548 [2022-03-18 21:23:00,745 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 21:23:00,745 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:00,745 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-18 21:23:00,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-18 21:23:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-03-18 21:23:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4747899159663866) internal successors, (702), 476 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 21:23:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 706 transitions. [2022-03-18 21:23:00,750 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 706 transitions. Word has length 149 [2022-03-18 21:23:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:00,750 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 706 transitions. [2022-03-18 21:23:00,750 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 21:23:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 706 transitions. [2022-03-18 21:23:00,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:23:00,752 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:00,752 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:00,753 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-18 21:23:00,753 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:00,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:00,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2073111519, now seen corresponding path program 1 times [2022-03-18 21:23:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:00,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012353098] [2022-03-18 21:23:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:00,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-18 21:23:00,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:00,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012353098] [2022-03-18 21:23:00,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012353098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:00,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:00,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:23:00,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666584525] [2022-03-18 21:23:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:00,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:23:00,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:00,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:23:00,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:23:00,850 INFO L87 Difference]: Start difference. First operand 481 states and 706 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:02,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:02,542 INFO L93 Difference]: Finished difference Result 927 states and 1359 transitions. [2022-03-18 21:23:02,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:23:02,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have 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 21:23:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:02,545 INFO L225 Difference]: With dead ends: 927 [2022-03-18 21:23:02,545 INFO L226 Difference]: Without dead ends: 927 [2022-03-18 21:23:02,545 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 21:23:02,545 INFO L912 BasicCegarLoop]: 253 mSDtfsCounter, 133 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:02,546 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 447 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-18 21:23:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2022-03-18 21:23:02,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 925. [2022-03-18 21:23:02,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 920 states have (on average 1.4717391304347827) internal successors, (1354), 920 states have internal predecessors, (1354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:02,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1358 transitions. [2022-03-18 21:23:02,556 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1358 transitions. Word has length 154 [2022-03-18 21:23:02,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:02,556 INFO L478 AbstractCegarLoop]: Abstraction has 925 states and 1358 transitions. [2022-03-18 21:23:02,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:02,556 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1358 transitions. [2022-03-18 21:23:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:23:02,558 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:02,558 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:02,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-18 21:23:02,558 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:02,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1086528830, now seen corresponding path program 1 times [2022-03-18 21:23:02,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:02,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170327422] [2022-03-18 21:23:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:02,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-18 21:23:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:02,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170327422] [2022-03-18 21:23:02,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170327422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:02,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:02,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:23:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910642709] [2022-03-18 21:23:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:02,651 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:23:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:23:02,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:23:02,652 INFO L87 Difference]: Start difference. First operand 925 states and 1358 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:05,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:06,078 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 21:23:06,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:06,324 INFO L93 Difference]: Finished difference Result 952 states and 1393 transitions. [2022-03-18 21:23:06,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:23:06,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:23:06,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:06,327 INFO L225 Difference]: With dead ends: 952 [2022-03-18 21:23:06,327 INFO L226 Difference]: Without dead ends: 952 [2022-03-18 21:23:06,327 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 21:23:06,328 INFO L912 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:06,328 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-03-18 21:23:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-03-18 21:23:06,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2022-03-18 21:23:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 947 states have (on average 1.4667370644139388) internal successors, (1389), 947 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1393 transitions. [2022-03-18 21:23:06,339 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1393 transitions. Word has length 154 [2022-03-18 21:23:06,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:06,339 INFO L478 AbstractCegarLoop]: Abstraction has 952 states and 1393 transitions. [2022-03-18 21:23:06,340 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:06,340 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1393 transitions. [2022-03-18 21:23:06,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-03-18 21:23:06,341 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:06,341 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:06,341 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-18 21:23:06,341 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:06,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:06,342 INFO L85 PathProgramCache]: Analyzing trace with hash 794143005, now seen corresponding path program 1 times [2022-03-18 21:23:06,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:06,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531975517] [2022-03-18 21:23:06,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:06,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:06,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-18 21:23:06,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:06,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531975517] [2022-03-18 21:23:06,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531975517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:06,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:06,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:23:06,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024930673] [2022-03-18 21:23:06,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:06,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:23:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:06,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:23:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:23:06,431 INFO L87 Difference]: Start difference. First operand 952 states and 1393 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:09,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:09,377 INFO L93 Difference]: Finished difference Result 954 states and 1395 transitions. [2022-03-18 21:23:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:23:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-03-18 21:23:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:09,381 INFO L225 Difference]: With dead ends: 954 [2022-03-18 21:23:09,381 INFO L226 Difference]: Without dead ends: 954 [2022-03-18 21:23:09,381 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 21:23:09,381 INFO L912 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:09,382 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-18 21:23:09,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-03-18 21:23:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-03-18 21:23:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4657534246575343) internal successors, (1391), 949 states have internal predecessors, (1391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1395 transitions. [2022-03-18 21:23:09,415 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1395 transitions. Word has length 154 [2022-03-18 21:23:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:09,416 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1395 transitions. [2022-03-18 21:23:09,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1395 transitions. [2022-03-18 21:23:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-18 21:23:09,417 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:09,417 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] [2022-03-18 21:23:09,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-18 21:23:09,417 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:09,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1349201162, now seen corresponding path program 1 times [2022-03-18 21:23:09,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:09,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649018475] [2022-03-18 21:23:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:09,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:09,554 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 21:23:09,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:09,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649018475] [2022-03-18 21:23:09,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649018475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:09,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:09,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:09,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607943989] [2022-03-18 21:23:09,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:09,556 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:09,556 INFO L87 Difference]: Start difference. First operand 954 states and 1395 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 21:23:11,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:13,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:13,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:13,808 INFO L93 Difference]: Finished difference Result 995 states and 1444 transitions. [2022-03-18 21:23:13,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:13,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-18 21:23:13,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:13,811 INFO L225 Difference]: With dead ends: 995 [2022-03-18 21:23:13,811 INFO L226 Difference]: Without dead ends: 995 [2022-03-18 21:23:13,811 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 21:23:13,812 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 42 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:13,812 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 545 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-18 21:23:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-03-18 21:23:13,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 954. [2022-03-18 21:23:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.463645943097998) internal successors, (1389), 949 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1393 transitions. [2022-03-18 21:23:13,820 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1393 transitions. Word has length 155 [2022-03-18 21:23:13,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:13,820 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1393 transitions. [2022-03-18 21:23:13,820 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 21:23:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1393 transitions. [2022-03-18 21:23:13,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-18 21:23:13,822 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:13,822 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] [2022-03-18 21:23:13,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-18 21:23:13,822 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:13,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:13,834 INFO L85 PathProgramCache]: Analyzing trace with hash 753577337, now seen corresponding path program 1 times [2022-03-18 21:23:13,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:13,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702544871] [2022-03-18 21:23:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:13,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:13,939 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 21:23:13,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:13,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702544871] [2022-03-18 21:23:13,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702544871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:13,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:13,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:13,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558522150] [2022-03-18 21:23:13,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:13,940 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:13,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:13,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:13,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:13,941 INFO L87 Difference]: Start difference. First operand 954 states and 1393 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 21:23:16,653 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 21:23:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:17,003 INFO L93 Difference]: Finished difference Result 991 states and 1438 transitions. [2022-03-18 21:23:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:17,003 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 156 [2022-03-18 21:23:17,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:17,006 INFO L225 Difference]: With dead ends: 991 [2022-03-18 21:23:17,006 INFO L226 Difference]: Without dead ends: 991 [2022-03-18 21:23:17,006 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-18 21:23:17,006 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 39 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:17,007 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:23:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-03-18 21:23:17,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 954. [2022-03-18 21:23:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4615384615384615) internal successors, (1387), 949 states have internal predecessors, (1387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1391 transitions. [2022-03-18 21:23:17,015 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1391 transitions. Word has length 156 [2022-03-18 21:23:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:17,015 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1391 transitions. [2022-03-18 21:23:17,015 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 21:23:17,015 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1391 transitions. [2022-03-18 21:23:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-18 21:23:17,017 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:17,017 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:17,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-18 21:23:17,017 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:17,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1839212727, now seen corresponding path program 1 times [2022-03-18 21:23:17,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:17,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331085995] [2022-03-18 21:23:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:17,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:17,138 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-03-18 21:23:17,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:17,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331085995] [2022-03-18 21:23:17,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331085995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:17,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:17,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:17,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785188597] [2022-03-18 21:23:17,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:17,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:17,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:17,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:17,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:17,140 INFO L87 Difference]: Start difference. First operand 954 states and 1391 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:19,388 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 21:23:20,458 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 21:23:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:20,794 INFO L93 Difference]: Finished difference Result 1033 states and 1502 transitions. [2022-03-18 21:23:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-18 21:23:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:20,797 INFO L225 Difference]: With dead ends: 1033 [2022-03-18 21:23:20,798 INFO L226 Difference]: Without dead ends: 1033 [2022-03-18 21:23:20,798 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 21:23:20,798 INFO L912 BasicCegarLoop]: 243 mSDtfsCounter, 28 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:20,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 605 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-18 21:23:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-03-18 21:23:20,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1006. [2022-03-18 21:23:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4615384615384615) internal successors, (1463), 1001 states have internal predecessors, (1463), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1467 transitions. [2022-03-18 21:23:20,807 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1467 transitions. Word has length 157 [2022-03-18 21:23:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:20,807 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1467 transitions. [2022-03-18 21:23:20,807 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1467 transitions. [2022-03-18 21:23:20,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-18 21:23:20,809 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:20,809 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:20,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-18 21:23:20,809 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:20,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:20,809 INFO L85 PathProgramCache]: Analyzing trace with hash 395348402, now seen corresponding path program 1 times [2022-03-18 21:23:20,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:20,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259814057] [2022-03-18 21:23:20,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:20,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:23:20,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:20,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259814057] [2022-03-18 21:23:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259814057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:20,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380709506] [2022-03-18 21:23:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:20,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:20,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:20,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:20,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:20,905 INFO L87 Difference]: Start difference. First operand 1006 states and 1467 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 21:23:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:22,638 INFO L93 Difference]: Finished difference Result 1043 states and 1512 transitions. [2022-03-18 21:23:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 163 [2022-03-18 21:23:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:22,641 INFO L225 Difference]: With dead ends: 1043 [2022-03-18 21:23:22,641 INFO L226 Difference]: Without dead ends: 1043 [2022-03-18 21:23:22,642 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 21:23:22,642 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:22,642 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-03-18 21:23:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-03-18 21:23:22,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1006. [2022-03-18 21:23:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4595404595404595) internal successors, (1461), 1001 states have internal predecessors, (1461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1465 transitions. [2022-03-18 21:23:22,651 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1465 transitions. Word has length 163 [2022-03-18 21:23:22,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:22,651 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1465 transitions. [2022-03-18 21:23:22,652 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 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 21:23:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1465 transitions. [2022-03-18 21:23:22,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-03-18 21:23:22,653 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:22,653 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:22,653 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-18 21:23:22,653 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:22,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:22,654 INFO L85 PathProgramCache]: Analyzing trace with hash 374542751, now seen corresponding path program 1 times [2022-03-18 21:23:22,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:22,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019505245] [2022-03-18 21:23:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:22,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:22,793 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:23:22,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:22,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019505245] [2022-03-18 21:23:22,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019505245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:22,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:22,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:22,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770029426] [2022-03-18 21:23:22,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:22,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:22,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:22,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:22,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:22,795 INFO L87 Difference]: Start difference. First operand 1006 states and 1465 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:25,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:25,081 INFO L93 Difference]: Finished difference Result 1137 states and 1631 transitions. [2022-03-18 21:23:25,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:25,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-03-18 21:23:25,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:25,085 INFO L225 Difference]: With dead ends: 1137 [2022-03-18 21:23:25,085 INFO L226 Difference]: Without dead ends: 1137 [2022-03-18 21:23:25,085 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 21:23:25,085 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:25,085 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-18 21:23:25,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-03-18 21:23:25,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1006. [2022-03-18 21:23:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4455544455544456) internal successors, (1447), 1001 states have internal predecessors, (1447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1451 transitions. [2022-03-18 21:23:25,095 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1451 transitions. Word has length 164 [2022-03-18 21:23:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:25,096 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1451 transitions. [2022-03-18 21:23:25,096 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1451 transitions. [2022-03-18 21:23:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-18 21:23:25,097 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:25,098 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:25,098 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-18 21:23:25,098 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:25,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash 663485998, now seen corresponding path program 1 times [2022-03-18 21:23:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:25,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442999176] [2022-03-18 21:23:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:23:25,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:25,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442999176] [2022-03-18 21:23:25,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442999176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:25,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:25,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:25,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64190527] [2022-03-18 21:23:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:25,194 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:25,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:25,196 INFO L87 Difference]: Start difference. First operand 1006 states and 1451 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 21:23:27,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:27,228 INFO L93 Difference]: Finished difference Result 1039 states and 1490 transitions. [2022-03-18 21:23:27,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:27,228 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 166 [2022-03-18 21:23:27,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:27,231 INFO L225 Difference]: With dead ends: 1039 [2022-03-18 21:23:27,231 INFO L226 Difference]: Without dead ends: 1039 [2022-03-18 21:23:27,231 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 21:23:27,232 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 38 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:27,232 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-18 21:23:27,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-03-18 21:23:27,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1006. [2022-03-18 21:23:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4435564435564436) internal successors, (1445), 1001 states have internal predecessors, (1445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1449 transitions. [2022-03-18 21:23:27,243 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1449 transitions. Word has length 166 [2022-03-18 21:23:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:27,243 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1449 transitions. [2022-03-18 21:23:27,243 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 21:23:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1449 transitions. [2022-03-18 21:23:27,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-18 21:23:27,245 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:27,245 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:23:27,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-18 21:23:27,245 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1857596404, now seen corresponding path program 1 times [2022-03-18 21:23:27,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741383393] [2022-03-18 21:23:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:27,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-18 21:23:27,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:27,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741383393] [2022-03-18 21:23:27,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741383393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:27,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:27,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:27,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515326704] [2022-03-18 21:23:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:27,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:27,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:27,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:27,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:27,377 INFO L87 Difference]: Start difference. First operand 1006 states and 1449 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:29,758 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 21:23:31,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:32,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:32,253 INFO L93 Difference]: Finished difference Result 1031 states and 1478 transitions. [2022-03-18 21:23:32,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:32,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have 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 21:23:32,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:32,255 INFO L225 Difference]: With dead ends: 1031 [2022-03-18 21:23:32,256 INFO L226 Difference]: Without dead ends: 1031 [2022-03-18 21:23:32,256 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 21:23:32,256 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 33 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:32,256 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-18 21:23:32,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-03-18 21:23:32,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1006. [2022-03-18 21:23:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4415584415584415) internal successors, (1443), 1001 states have internal predecessors, (1443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1447 transitions. [2022-03-18 21:23:32,264 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1447 transitions. Word has length 167 [2022-03-18 21:23:32,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:32,264 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1447 transitions. [2022-03-18 21:23:32,264 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1447 transitions. [2022-03-18 21:23:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-18 21:23:32,265 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:32,266 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:32,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-18 21:23:32,266 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:32,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:32,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2024925367, now seen corresponding path program 1 times [2022-03-18 21:23:32,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:32,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137643316] [2022-03-18 21:23:32,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:32,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:32,366 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-18 21:23:32,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:32,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137643316] [2022-03-18 21:23:32,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137643316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:32,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:32,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:23:32,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449093614] [2022-03-18 21:23:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:32,368 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:23:32,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:32,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:23:32,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:23:32,369 INFO L87 Difference]: Start difference. First operand 1006 states and 1447 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:34,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:34,510 INFO L93 Difference]: Finished difference Result 1479 states and 2128 transitions. [2022-03-18 21:23:34,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:23:34,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-18 21:23:34,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:34,515 INFO L225 Difference]: With dead ends: 1479 [2022-03-18 21:23:34,516 INFO L226 Difference]: Without dead ends: 1479 [2022-03-18 21:23:34,516 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 21:23:34,517 INFO L912 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:34,517 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-18 21:23:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-03-18 21:23:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2022-03-18 21:23:34,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1474 states have (on average 1.440976933514247) internal successors, (2124), 1474 states have internal predecessors, (2124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2128 transitions. [2022-03-18 21:23:34,535 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2128 transitions. Word has length 173 [2022-03-18 21:23:34,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:34,537 INFO L478 AbstractCegarLoop]: Abstraction has 1479 states and 2128 transitions. [2022-03-18 21:23:34,537 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:34,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2128 transitions. [2022-03-18 21:23:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-18 21:23:34,550 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:34,551 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:34,551 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-18 21:23:34,551 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:34,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:34,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1944610709, now seen corresponding path program 1 times [2022-03-18 21:23:34,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:34,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374380792] [2022-03-18 21:23:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:34,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-18 21:23:34,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:34,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374380792] [2022-03-18 21:23:34,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374380792] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:34,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:34,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-18 21:23:34,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269126517] [2022-03-18 21:23:34,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:34,711 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-18 21:23:34,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:34,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-18 21:23:34,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-18 21:23:34,712 INFO L87 Difference]: Start difference. First operand 1479 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:36,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:37,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:37,720 INFO L93 Difference]: Finished difference Result 1917 states and 2757 transitions. [2022-03-18 21:23:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-18 21:23:37,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-18 21:23:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:37,725 INFO L225 Difference]: With dead ends: 1917 [2022-03-18 21:23:37,725 INFO L226 Difference]: Without dead ends: 1917 [2022-03-18 21:23:37,725 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 21:23:37,725 INFO L912 BasicCegarLoop]: 305 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:37,725 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 499 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-03-18 21:23:37,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-03-18 21:23:37,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1911. [2022-03-18 21:23:37,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1906 states have (on average 1.441762854144806) internal successors, (2748), 1906 states have internal predecessors, (2748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2752 transitions. [2022-03-18 21:23:37,739 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2752 transitions. Word has length 174 [2022-03-18 21:23:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:37,740 INFO L478 AbstractCegarLoop]: Abstraction has 1911 states and 2752 transitions. [2022-03-18 21:23:37,740 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2752 transitions. [2022-03-18 21:23:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-03-18 21:23:37,741 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:37,741 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:37,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-18 21:23:37,742 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:37,743 INFO L85 PathProgramCache]: Analyzing trace with hash 790409397, now seen corresponding path program 1 times [2022-03-18 21:23:37,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:37,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221280386] [2022-03-18 21:23:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:37,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:37,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-18 21:23:37,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:37,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221280386] [2022-03-18 21:23:37,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221280386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:37,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:37,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:37,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969233580] [2022-03-18 21:23:37,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:37,842 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:37,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:37,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:37,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:37,843 INFO L87 Difference]: Start difference. First operand 1911 states and 2752 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:41,093 INFO L93 Difference]: Finished difference Result 2108 states and 3035 transitions. [2022-03-18 21:23:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:41,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-03-18 21:23:41,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:41,098 INFO L225 Difference]: With dead ends: 2108 [2022-03-18 21:23:41,099 INFO L226 Difference]: Without dead ends: 2108 [2022-03-18 21:23:41,099 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 21:23:41,099 INFO L912 BasicCegarLoop]: 248 mSDtfsCounter, 38 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:41,099 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 615 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-18 21:23:41,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2022-03-18 21:23:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2023. [2022-03-18 21:23:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.4430128840436076) internal successors, (2912), 2018 states have internal predecessors, (2912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:41,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2916 transitions. [2022-03-18 21:23:41,115 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2916 transitions. Word has length 185 [2022-03-18 21:23:41,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:41,115 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2916 transitions. [2022-03-18 21:23:41,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2916 transitions. [2022-03-18 21:23:41,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-03-18 21:23:41,118 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:41,118 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:41,118 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-18 21:23:41,118 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:41,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:41,118 INFO L85 PathProgramCache]: Analyzing trace with hash -746379742, now seen corresponding path program 1 times [2022-03-18 21:23:41,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:41,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815445955] [2022-03-18 21:23:41,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:41,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-03-18 21:23:41,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:41,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815445955] [2022-03-18 21:23:41,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815445955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:41,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:41,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:41,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310769094] [2022-03-18 21:23:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:41,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:41,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:41,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:41,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:41,250 INFO L87 Difference]: Start difference. First operand 2023 states and 2916 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:43,433 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 21:23:43,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:43,818 INFO L93 Difference]: Finished difference Result 2234 states and 3173 transitions. [2022-03-18 21:23:43,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:43,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-03-18 21:23:43,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:43,823 INFO L225 Difference]: With dead ends: 2234 [2022-03-18 21:23:43,823 INFO L226 Difference]: Without dead ends: 2234 [2022-03-18 21:23:43,823 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 21:23:43,824 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 107 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:43,824 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 404 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-18 21:23:43,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-03-18 21:23:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2023. [2022-03-18 21:23:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.431615460852329) internal successors, (2889), 2018 states have internal predecessors, (2889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:43,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2893 transitions. [2022-03-18 21:23:43,851 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2893 transitions. Word has length 189 [2022-03-18 21:23:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:43,851 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2893 transitions. [2022-03-18 21:23:43,852 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:43,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2893 transitions. [2022-03-18 21:23:43,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-18 21:23:43,853 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:43,853 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:43,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-18 21:23:43,854 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:43,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:43,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2132148959, now seen corresponding path program 1 times [2022-03-18 21:23:43,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:43,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295730658] [2022-03-18 21:23:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:43,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:43,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:43,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:43,970 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-18 21:23:43,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:43,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295730658] [2022-03-18 21:23:43,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295730658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:43,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:43,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:43,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322234786] [2022-03-18 21:23:43,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:43,971 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:43,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:43,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:43,972 INFO L87 Difference]: Start difference. First operand 2023 states and 2893 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:46,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:47,063 INFO L93 Difference]: Finished difference Result 2232 states and 3178 transitions. [2022-03-18 21:23:47,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:47,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-18 21:23:47,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:47,072 INFO L225 Difference]: With dead ends: 2232 [2022-03-18 21:23:47,072 INFO L226 Difference]: Without dead ends: 2232 [2022-03-18 21:23:47,072 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 21:23:47,073 INFO L912 BasicCegarLoop]: 245 mSDtfsCounter, 57 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:47,073 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 608 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-18 21:23:47,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-03-18 21:23:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2128. [2022-03-18 21:23:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.431464908148846) internal successors, (3039), 2123 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:47,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3043 transitions. [2022-03-18 21:23:47,088 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3043 transitions. Word has length 196 [2022-03-18 21:23:47,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:47,089 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3043 transitions. [2022-03-18 21:23:47,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:47,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3043 transitions. [2022-03-18 21:23:47,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-18 21:23:47,091 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:47,091 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:47,091 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-18 21:23:47,091 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:47,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:47,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2042967890, now seen corresponding path program 1 times [2022-03-18 21:23:47,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:47,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909656561] [2022-03-18 21:23:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:47,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:47,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-18 21:23:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:47,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909656561] [2022-03-18 21:23:47,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909656561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:47,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:47,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-18 21:23:47,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162382960] [2022-03-18 21:23:47,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:47,201 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-18 21:23:47,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:47,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-18 21:23:47,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-18 21:23:47,202 INFO L87 Difference]: Start difference. First operand 2128 states and 3043 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:50,391 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 21:23:52,416 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 21:23:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:23:52,825 INFO L93 Difference]: Finished difference Result 2375 states and 3367 transitions. [2022-03-18 21:23:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-18 21:23:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-18 21:23:52,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:23:52,829 INFO L225 Difference]: With dead ends: 2375 [2022-03-18 21:23:52,830 INFO L226 Difference]: Without dead ends: 2375 [2022-03-18 21:23:52,830 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 21:23:52,832 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 108 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:23:52,834 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 392 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-18 21:23:52,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-03-18 21:23:52,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2128. [2022-03-18 21:23:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.4258125294394723) internal successors, (3027), 2123 states have internal predecessors, (3027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:52,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3031 transitions. [2022-03-18 21:23:52,883 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3031 transitions. Word has length 197 [2022-03-18 21:23:52,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:23:52,883 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3031 transitions. [2022-03-18 21:23:52,883 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:23:52,884 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3031 transitions. [2022-03-18 21:23:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-18 21:23:52,886 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:23:52,886 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:23:52,886 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-18 21:23:52,887 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:23:52,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:23:52,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2042368162, now seen corresponding path program 1 times [2022-03-18 21:23:52,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:23:52,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447779594] [2022-03-18 21:23:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:23:52,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:23:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:53,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:23:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:23:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-03-18 21:23:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:23:53,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447779594] [2022-03-18 21:23:53,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447779594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 21:23:53,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 21:23:53,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-18 21:23:53,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680155811] [2022-03-18 21:23:53,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 21:23:53,334 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-18 21:23:53,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-18 21:23:53,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-18 21:23:53,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-18 21:23:53,334 INFO L87 Difference]: Start difference. First operand 2128 states and 3031 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 21:23:56,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:23:58,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:00,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-18 21:24:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 21:24:00,956 INFO L93 Difference]: Finished difference Result 2136 states and 3041 transitions. [2022-03-18 21:24:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-18 21:24:00,957 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 198 [2022-03-18 21:24:00,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 21:24:00,960 INFO L225 Difference]: With dead ends: 2136 [2022-03-18 21:24:00,960 INFO L226 Difference]: Without dead ends: 2128 [2022-03-18 21:24:00,960 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 21:24:00,960 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-18 21:24:00,960 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 872 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-03-18 21:24:00,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-03-18 21:24:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2022-03-18 21:24:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.425341497880358) internal successors, (3026), 2123 states have internal predecessors, (3026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-18 21:24:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3030 transitions. [2022-03-18 21:24:00,973 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3030 transitions. Word has length 198 [2022-03-18 21:24:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 21:24:00,973 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3030 transitions. [2022-03-18 21:24:00,973 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 21:24:00,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3030 transitions. [2022-03-18 21:24:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-18 21:24:00,976 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 21:24:00,976 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 21:24:00,976 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-18 21:24:00,976 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 21:24:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 21:24:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1798831299, now seen corresponding path program 1 times [2022-03-18 21:24:00,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 21:24:00,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471838529] [2022-03-18 21:24:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:00,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 21:24:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:01,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 21:24:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:01,853 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-03-18 21:24:01,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 21:24:01,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471838529] [2022-03-18 21:24:01,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471838529] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-18 21:24:01,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415214945] [2022-03-18 21:24:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 21:24:01,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-18 21:24:01,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 21:24:01,868 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 21:24:01,869 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 21:24:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 21:24:02,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 173 conjunts are in the unsatisfiable core [2022-03-18 21:24:02,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-18 21:24:03,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,039 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 14076 treesize of output 12060 [2022-03-18 21:24:03,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-18 21:24:03,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5440 treesize of output 866