/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.02.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 07:32:14,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 07:32:14,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 07:32:15,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 07:32:15,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 07:32:15,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 07:32:15,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 07:32:15,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 07:32:15,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 07:32:15,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 07:32:15,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 07:32:15,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 07:32:15,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 07:32:15,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 07:32:15,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 07:32:15,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 07:32:15,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 07:32:15,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 07:32:15,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 07:32:15,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 07:32:15,035 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 07:32:15,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 07:32:15,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 07:32:15,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 07:32:15,038 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 07:32:15,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 07:32:15,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 07:32:15,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 07:32:15,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 07:32:15,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 07:32:15,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-20 07:32:15,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-20 07:32:15,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-20 07:32:15,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-20 07:32:15,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-20 07:32:15,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-20 07:32:15,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-20 07:32:15,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-20 07:32:15,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-20 07:32:15,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 07:32:15,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 07:32:15,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 07:32:15,050 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-20 07:32:15,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 07:32:15,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 07:32:15,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 07:32:15,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 07:32:15,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 07:32:15,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 07:32:15,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 07:32:15,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 07:32:15,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 07:32:15,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 07:32:15,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 07:32:15,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 07:32:15,060 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 07:32:15,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 07:32:15,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 07:32:15,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 07:32:15,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 07:32:15,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 07:32:15,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:32:15,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 07:32:15,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 07:32:15,062 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-20 07:32:15,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 07:32:15,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 07:32:15,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 07:32:15,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 07:32:15,280 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 07:32:15,280 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 07:32:15,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-20 07:32:15,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c1c76467/528224e0c5004a9fa0e0381084d91338/FLAGd15b1099d [2022-03-20 07:32:15,822 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 07:32:15,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.02.i.cil-2.c [2022-03-20 07:32:15,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c1c76467/528224e0c5004a9fa0e0381084d91338/FLAGd15b1099d [2022-03-20 07:32:15,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c1c76467/528224e0c5004a9fa0e0381084d91338 [2022-03-20 07:32:15,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 07:32:15,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-20 07:32:15,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 07:32:15,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 07:32:15,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 07:32:15,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:32:15" (1/1) ... [2022-03-20 07:32:15,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2daf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:15, skipping insertion in model container [2022-03-20 07:32:15,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 07:32:15" (1/1) ... [2022-03-20 07:32:15,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 07:32:15,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 07:32:16,261 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.02.i.cil-2.c[72502,72515] [2022-03-20 07:32:16,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:32:16,284 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 07:32:16,350 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.02.i.cil-2.c[72502,72515] [2022-03-20 07:32:16,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 07:32:16,372 INFO L208 MainTranslator]: Completed translation [2022-03-20 07:32:16,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16 WrapperNode [2022-03-20 07:32:16,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 07:32:16,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 07:32:16,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 07:32:16,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 07:32:16,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 07:32:16,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 07:32:16,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 07:32:16,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 07:32:16,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (1/1) ... [2022-03-20 07:32:16,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 07:32:16,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:32:16,521 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) [2022-03-20 07:32:16,530 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 [2022-03-20 07:32:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 07:32:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 07:32:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 07:32:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-20 07:32:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-20 07:32:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 07:32:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-20 07:32:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-20 07:32:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-20 07:32:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 07:32:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 07:32:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 07:32:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 07:32:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 07:32:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-20 07:32:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 07:32:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 07:32:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 07:32:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 07:32:16,700 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 07:32:16,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 07:32:19,034 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 07:32:19,326 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-20 07:32:19,327 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-20 07:32:19,335 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 07:32:19,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 07:32:19,341 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-20 07:32:19,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:32:19 BoogieIcfgContainer [2022-03-20 07:32:19,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 07:32:19,343 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-20 07:32:19,343 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-20 07:32:19,344 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-20 07:32:19,346 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:32:19" (1/1) ... [2022-03-20 07:32:19,347 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-03-20 07:32:19,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:32:19 BasicIcfg [2022-03-20 07:32:19,376 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-20 07:32:19,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 07:32:19,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 07:32:19,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 07:32:19,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 07:32:15" (1/4) ... [2022-03-20 07:32:19,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bffa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:32:19, skipping insertion in model container [2022-03-20 07:32:19,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 07:32:16" (2/4) ... [2022-03-20 07:32:19,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bffa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 07:32:19, skipping insertion in model container [2022-03-20 07:32:19,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 07:32:19" (3/4) ... [2022-03-20 07:32:19,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bffa2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.03 07:32:19, skipping insertion in model container [2022-03-20 07:32:19,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 20.03 07:32:19" (4/4) ... [2022-03-20 07:32:19,382 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.02.i.cil-2.cJordan [2022-03-20 07:32:19,385 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-20 07:32:19,385 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 07:32:19,413 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 07:32:19,417 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 [2022-03-20 07:32:19,417 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 07:32:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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) [2022-03-20 07:32:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-20 07:32:19,435 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:19,436 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:19,436 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:19,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1355699347, now seen corresponding path program 1 times [2022-03-20 07:32:19,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:19,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522583500] [2022-03-20 07:32:19,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:19,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:19,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:19,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522583500] [2022-03-20 07:32:19,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522583500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:19,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:19,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:19,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191720304] [2022-03-20 07:32:19,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:19,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:19,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:19,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:19,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:19,848 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:21,877 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 [] [2022-03-20 07:32:22,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:22,670 INFO L93 Difference]: Finished difference Result 277 states and 458 transitions. [2022-03-20 07:32:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:22,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-20 07:32:22,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:22,681 INFO L225 Difference]: With dead ends: 277 [2022-03-20 07:32:22,681 INFO L226 Difference]: Without dead ends: 251 [2022-03-20 07:32:22,681 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:22,684 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 140 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:22,684 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 433 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 07:32:22,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-03-20 07:32:22,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 180. [2022-03-20 07:32:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6057142857142856) internal successors, (281), 175 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 285 transitions. [2022-03-20 07:32:22,715 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 285 transitions. Word has length 52 [2022-03-20 07:32:22,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:22,715 INFO L478 AbstractCegarLoop]: Abstraction has 180 states and 285 transitions. [2022-03-20 07:32:22,716 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:22,716 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 285 transitions. [2022-03-20 07:32:22,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 07:32:22,717 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:22,717 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:22,717 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 07:32:22,717 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:22,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:22,718 INFO L85 PathProgramCache]: Analyzing trace with hash 923942425, now seen corresponding path program 1 times [2022-03-20 07:32:22,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:22,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372065903] [2022-03-20 07:32:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:22,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:22,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:22,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:22,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372065903] [2022-03-20 07:32:22,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372065903] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:22,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:22,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:22,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157372756] [2022-03-20 07:32:22,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:22,871 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:22,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:22,871 INFO L87 Difference]: Start difference. First operand 180 states and 285 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:24,881 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 [] [2022-03-20 07:32:25,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:25,329 INFO L93 Difference]: Finished difference Result 208 states and 325 transitions. [2022-03-20 07:32:25,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:25,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 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 53 [2022-03-20 07:32:25,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:25,331 INFO L225 Difference]: With dead ends: 208 [2022-03-20 07:32:25,331 INFO L226 Difference]: Without dead ends: 208 [2022-03-20 07:32:25,331 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:25,332 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 22 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:25,332 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 451 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 352 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:25,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-03-20 07:32:25,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2022-03-20 07:32:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6129032258064515) internal successors, (300), 186 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 304 transitions. [2022-03-20 07:32:25,340 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 304 transitions. Word has length 53 [2022-03-20 07:32:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:25,341 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 304 transitions. [2022-03-20 07:32:25,341 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:25,341 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 304 transitions. [2022-03-20 07:32:25,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-20 07:32:25,342 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:25,342 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:25,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 07:32:25,343 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:25,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:25,343 INFO L85 PathProgramCache]: Analyzing trace with hash -965147185, now seen corresponding path program 1 times [2022-03-20 07:32:25,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:25,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430645040] [2022-03-20 07:32:25,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:25,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:25,482 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:25,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:25,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430645040] [2022-03-20 07:32:25,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430645040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:25,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:25,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573702789] [2022-03-20 07:32:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:25,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:25,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:25,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:25,484 INFO L87 Difference]: Start difference. First operand 191 states and 304 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) [2022-03-20 07:32:27,493 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 [] [2022-03-20 07:32:27,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:27,845 INFO L93 Difference]: Finished difference Result 208 states and 324 transitions. [2022-03-20 07:32:27,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:27,845 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 [2022-03-20 07:32:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:27,847 INFO L225 Difference]: With dead ends: 208 [2022-03-20 07:32:27,847 INFO L226 Difference]: Without dead ends: 208 [2022-03-20 07:32:27,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:27,848 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:27,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-03-20 07:32:27,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 191. [2022-03-20 07:32:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.60752688172043) internal successors, (299), 186 states have internal predecessors, (299), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:27,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 303 transitions. [2022-03-20 07:32:27,855 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 303 transitions. Word has length 66 [2022-03-20 07:32:27,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:27,855 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 303 transitions. [2022-03-20 07:32:27,855 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) [2022-03-20 07:32:27,855 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 303 transitions. [2022-03-20 07:32:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:32:27,856 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:27,857 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:27,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 07:32:27,857 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash 328113503, now seen corresponding path program 1 times [2022-03-20 07:32:27,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:27,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566092531] [2022-03-20 07:32:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:27,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:27,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:27,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:27,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566092531] [2022-03-20 07:32:27,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566092531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:27,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:27,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:27,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080635139] [2022-03-20 07:32:27,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:27,984 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:27,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:27,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:27,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:27,985 INFO L87 Difference]: Start difference. First operand 191 states and 303 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) [2022-03-20 07:32:29,994 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 [] [2022-03-20 07:32:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:30,461 INFO L93 Difference]: Finished difference Result 304 states and 475 transitions. [2022-03-20 07:32:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:30,463 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 [2022-03-20 07:32:30,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:30,465 INFO L225 Difference]: With dead ends: 304 [2022-03-20 07:32:30,465 INFO L226 Difference]: Without dead ends: 304 [2022-03-20 07:32:30,465 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:30,466 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 142 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:30,466 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-03-20 07:32:30,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 202. [2022-03-20 07:32:30,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5888324873096447) internal successors, (313), 197 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:30,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 317 transitions. [2022-03-20 07:32:30,474 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 317 transitions. Word has length 67 [2022-03-20 07:32:30,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:30,475 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 317 transitions. [2022-03-20 07:32:30,475 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) [2022-03-20 07:32:30,475 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 317 transitions. [2022-03-20 07:32:30,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:32:30,476 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:30,476 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:30,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 07:32:30,476 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1220763967, now seen corresponding path program 1 times [2022-03-20 07:32:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:30,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624334919] [2022-03-20 07:32:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:30,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:30,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:30,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:30,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624334919] [2022-03-20 07:32:30,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624334919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:30,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:30,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:30,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800458595] [2022-03-20 07:32:30,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:30,614 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:30,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:30,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:30,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:30,615 INFO L87 Difference]: Start difference. First operand 202 states and 317 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) [2022-03-20 07:32:32,622 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 [] [2022-03-20 07:32:33,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:33,002 INFO L93 Difference]: Finished difference Result 218 states and 336 transitions. [2022-03-20 07:32:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:33,003 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 [2022-03-20 07:32:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:33,004 INFO L225 Difference]: With dead ends: 218 [2022-03-20 07:32:33,004 INFO L226 Difference]: Without dead ends: 218 [2022-03-20 07:32:33,004 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:33,008 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 26 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:33,009 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-03-20 07:32:33,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 202. [2022-03-20 07:32:33,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.583756345177665) internal successors, (312), 197 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:33,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 316 transitions. [2022-03-20 07:32:33,018 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 316 transitions. Word has length 67 [2022-03-20 07:32:33,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:33,018 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 316 transitions. [2022-03-20 07:32:33,018 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) [2022-03-20 07:32:33,019 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 316 transitions. [2022-03-20 07:32:33,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:32:33,019 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:33,020 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:33,020 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 07:32:33,020 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:33,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:33,020 INFO L85 PathProgramCache]: Analyzing trace with hash 669903327, now seen corresponding path program 1 times [2022-03-20 07:32:33,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:33,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469052705] [2022-03-20 07:32:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:33,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:33,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:33,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:33,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469052705] [2022-03-20 07:32:33,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469052705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:33,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:33,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:33,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142243421] [2022-03-20 07:32:33,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:33,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:33,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:33,160 INFO L87 Difference]: Start difference. First operand 202 states and 316 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) [2022-03-20 07:32:35,169 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 [] [2022-03-20 07:32:35,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:35,518 INFO L93 Difference]: Finished difference Result 217 states and 334 transitions. [2022-03-20 07:32:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:35,519 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 [2022-03-20 07:32:35,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:35,520 INFO L225 Difference]: With dead ends: 217 [2022-03-20 07:32:35,520 INFO L226 Difference]: Without dead ends: 217 [2022-03-20 07:32:35,520 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:35,520 INFO L913 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:35,521 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 457 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 346 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:35,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-20 07:32:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 202. [2022-03-20 07:32:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 197 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 315 transitions. [2022-03-20 07:32:35,525 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 315 transitions. Word has length 67 [2022-03-20 07:32:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:35,525 INFO L478 AbstractCegarLoop]: Abstraction has 202 states and 315 transitions. [2022-03-20 07:32:35,525 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) [2022-03-20 07:32:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 315 transitions. [2022-03-20 07:32:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-20 07:32:35,526 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:35,526 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:35,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 07:32:35,527 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:35,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:35,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1997406977, now seen corresponding path program 1 times [2022-03-20 07:32:35,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:35,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878367294] [2022-03-20 07:32:35,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:35,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:35,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:35,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878367294] [2022-03-20 07:32:35,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878367294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:35,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:35,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:35,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899935003] [2022-03-20 07:32:35,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:35,628 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:35,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:35,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:35,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:35,629 INFO L87 Difference]: Start difference. First operand 202 states and 315 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) [2022-03-20 07:32:37,637 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 [] [2022-03-20 07:32:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:38,069 INFO L93 Difference]: Finished difference Result 304 states and 470 transitions. [2022-03-20 07:32:38,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:38,070 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 [2022-03-20 07:32:38,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:38,071 INFO L225 Difference]: With dead ends: 304 [2022-03-20 07:32:38,071 INFO L226 Difference]: Without dead ends: 304 [2022-03-20 07:32:38,071 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:38,072 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:38,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:38,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-03-20 07:32:38,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 208. [2022-03-20 07:32:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5763546798029557) internal successors, (320), 203 states have internal predecessors, (320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 324 transitions. [2022-03-20 07:32:38,076 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 324 transitions. Word has length 67 [2022-03-20 07:32:38,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:38,077 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 324 transitions. [2022-03-20 07:32:38,077 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) [2022-03-20 07:32:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 324 transitions. [2022-03-20 07:32:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-20 07:32:38,078 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:38,078 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:38,078 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 07:32:38,078 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:38,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:38,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1264278193, now seen corresponding path program 1 times [2022-03-20 07:32:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:38,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318024437] [2022-03-20 07:32:38,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:38,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:38,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:38,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318024437] [2022-03-20 07:32:38,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318024437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:38,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:38,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:38,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590336864] [2022-03-20 07:32:38,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:38,177 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:38,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:38,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:38,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:38,178 INFO L87 Difference]: Start difference. First operand 208 states and 324 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) [2022-03-20 07:32:40,186 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 [] [2022-03-20 07:32:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:40,623 INFO L93 Difference]: Finished difference Result 304 states and 467 transitions. [2022-03-20 07:32:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:40,624 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 [2022-03-20 07:32:40,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:40,625 INFO L225 Difference]: With dead ends: 304 [2022-03-20 07:32:40,625 INFO L226 Difference]: Without dead ends: 304 [2022-03-20 07:32:40,625 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:40,626 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 138 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:40,626 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:32:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2022-03-20 07:32:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 208. [2022-03-20 07:32:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.561576354679803) internal successors, (317), 203 states have internal predecessors, (317), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 321 transitions. [2022-03-20 07:32:40,630 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 321 transitions. Word has length 68 [2022-03-20 07:32:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:40,630 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 321 transitions. [2022-03-20 07:32:40,630 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) [2022-03-20 07:32:40,631 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 321 transitions. [2022-03-20 07:32:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-20 07:32:40,631 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:40,631 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:40,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 07:32:40,631 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1953334341, now seen corresponding path program 1 times [2022-03-20 07:32:40,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:40,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876513269] [2022-03-20 07:32:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:40,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:40,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:40,717 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:40,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:40,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876513269] [2022-03-20 07:32:40,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876513269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:40,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:40,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:40,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276911977] [2022-03-20 07:32:40,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:40,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:40,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:40,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:40,720 INFO L87 Difference]: Start difference. First operand 208 states and 321 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:42,728 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 [] [2022-03-20 07:32:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:43,052 INFO L93 Difference]: Finished difference Result 221 states and 337 transitions. [2022-03-20 07:32:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-20 07:32:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:43,054 INFO L225 Difference]: With dead ends: 221 [2022-03-20 07:32:43,054 INFO L226 Difference]: Without dead ends: 221 [2022-03-20 07:32:43,054 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:43,054 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:43,055 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:43,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-20 07:32:43,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2022-03-20 07:32:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5566502463054188) internal successors, (316), 203 states have internal predecessors, (316), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 320 transitions. [2022-03-20 07:32:43,058 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 320 transitions. Word has length 69 [2022-03-20 07:32:43,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:43,058 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 320 transitions. [2022-03-20 07:32:43,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 320 transitions. [2022-03-20 07:32:43,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 07:32:43,059 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:43,059 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:43,059 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-20 07:32:43,060 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:43,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:43,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1734108460, now seen corresponding path program 1 times [2022-03-20 07:32:43,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:43,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841283460] [2022-03-20 07:32:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:43,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:43,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:43,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841283460] [2022-03-20 07:32:43,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841283460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:43,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:43,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:43,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007152255] [2022-03-20 07:32:43,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:43,152 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:43,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:43,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:43,153 INFO L87 Difference]: Start difference. First operand 208 states and 320 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:45,169 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 [] [2022-03-20 07:32:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:45,474 INFO L93 Difference]: Finished difference Result 211 states and 323 transitions. [2022-03-20 07:32:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:45,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 07:32:45,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:45,475 INFO L225 Difference]: With dead ends: 211 [2022-03-20 07:32:45,475 INFO L226 Difference]: Without dead ends: 211 [2022-03-20 07:32:45,475 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:45,476 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:45,476 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-03-20 07:32:45,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2022-03-20 07:32:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5517241379310345) internal successors, (315), 203 states have internal predecessors, (315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:45,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 319 transitions. [2022-03-20 07:32:45,482 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 319 transitions. Word has length 70 [2022-03-20 07:32:45,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:45,482 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 319 transitions. [2022-03-20 07:32:45,482 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:45,482 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 319 transitions. [2022-03-20 07:32:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-20 07:32:45,483 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:45,483 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:45,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-20 07:32:45,483 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:45,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:45,484 INFO L85 PathProgramCache]: Analyzing trace with hash 338203677, now seen corresponding path program 1 times [2022-03-20 07:32:45,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:45,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898497227] [2022-03-20 07:32:45,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:45,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:45,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:45,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:45,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898497227] [2022-03-20 07:32:45,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898497227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:45,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:45,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:45,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999668145] [2022-03-20 07:32:45,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:45,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:45,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:45,581 INFO L87 Difference]: Start difference. First operand 208 states and 319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:47,288 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 [] [2022-03-20 07:32:49,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:51,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:32:53,355 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 [] [2022-03-20 07:32:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:53,693 INFO L93 Difference]: Finished difference Result 251 states and 382 transitions. [2022-03-20 07:32:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:53,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-20 07:32:53,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:53,695 INFO L225 Difference]: With dead ends: 251 [2022-03-20 07:32:53,695 INFO L226 Difference]: Without dead ends: 251 [2022-03-20 07:32:53,695 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:53,696 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 33 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:53,696 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 475 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-20 07:32:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-03-20 07:32:53,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 230. [2022-03-20 07:32:53,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.5555555555555556) internal successors, (350), 225 states have internal predecessors, (350), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:53,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 354 transitions. [2022-03-20 07:32:53,700 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 354 transitions. Word has length 70 [2022-03-20 07:32:53,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:53,700 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 354 transitions. [2022-03-20 07:32:53,700 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:53,700 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 354 transitions. [2022-03-20 07:32:53,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-20 07:32:53,701 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:53,701 INFO L499 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, 1, 1] [2022-03-20 07:32:53,701 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-20 07:32:53,701 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:53,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:53,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1716885067, now seen corresponding path program 1 times [2022-03-20 07:32:53,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:53,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619350644] [2022-03-20 07:32:53,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:53,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:53,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:53,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619350644] [2022-03-20 07:32:53,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619350644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:53,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:53,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:53,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910832601] [2022-03-20 07:32:53,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:53,799 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:53,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:53,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:53,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:53,800 INFO L87 Difference]: Start difference. First operand 230 states and 354 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:55,808 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 [] [2022-03-20 07:32:56,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:56,311 INFO L93 Difference]: Finished difference Result 367 states and 572 transitions. [2022-03-20 07:32:56,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-20 07:32:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:56,313 INFO L225 Difference]: With dead ends: 367 [2022-03-20 07:32:56,313 INFO L226 Difference]: Without dead ends: 367 [2022-03-20 07:32:56,313 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:56,314 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 135 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:56,314 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 536 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 569 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:32:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-03-20 07:32:56,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 246. [2022-03-20 07:32:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5435684647302905) internal successors, (372), 241 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 376 transitions. [2022-03-20 07:32:56,318 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 376 transitions. Word has length 83 [2022-03-20 07:32:56,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:56,318 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 376 transitions. [2022-03-20 07:32:56,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:56,319 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 376 transitions. [2022-03-20 07:32:56,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 07:32:56,319 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:56,319 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:56,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-20 07:32:56,320 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:56,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:56,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1535582141, now seen corresponding path program 1 times [2022-03-20 07:32:56,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:56,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574757282] [2022-03-20 07:32:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:56,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 07:32:56,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:56,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574757282] [2022-03-20 07:32:56,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574757282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:56,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:56,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:56,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760129482] [2022-03-20 07:32:56,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:56,430 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:56,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:56,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:56,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:56,431 INFO L87 Difference]: Start difference. First operand 246 states and 376 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) [2022-03-20 07:32:58,439 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 [] [2022-03-20 07:32:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:32:58,776 INFO L93 Difference]: Finished difference Result 258 states and 390 transitions. [2022-03-20 07:32:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:32:58,776 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 84 [2022-03-20 07:32:58,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:32:58,777 INFO L225 Difference]: With dead ends: 258 [2022-03-20 07:32:58,777 INFO L226 Difference]: Without dead ends: 258 [2022-03-20 07:32:58,778 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:32:58,778 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 20 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:32:58,778 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 540 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 380 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:32:58,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-20 07:32:58,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2022-03-20 07:32:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5394190871369295) internal successors, (371), 241 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:32:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 375 transitions. [2022-03-20 07:32:58,782 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 375 transitions. Word has length 84 [2022-03-20 07:32:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:32:58,782 INFO L478 AbstractCegarLoop]: Abstraction has 246 states and 375 transitions. [2022-03-20 07:32:58,783 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) [2022-03-20 07:32:58,783 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 375 transitions. [2022-03-20 07:32:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-03-20 07:32:58,783 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:32:58,783 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:32:58,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-20 07:32:58,783 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:32:58,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:32:58,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2086442781, now seen corresponding path program 1 times [2022-03-20 07:32:58,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:32:58,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306648365] [2022-03-20 07:32:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:32:58,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:32:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:32:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:32:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:32:58,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:32:58,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306648365] [2022-03-20 07:32:58,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306648365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:32:58,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:32:58,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:32:58,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808187513] [2022-03-20 07:32:58,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:32:58,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:32:58,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:32:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:32:58,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:32:58,870 INFO L87 Difference]: Start difference. First operand 246 states and 375 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) [2022-03-20 07:33:00,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:02,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:03,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:05,879 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 [] [2022-03-20 07:33:06,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:06,360 INFO L93 Difference]: Finished difference Result 341 states and 517 transitions. [2022-03-20 07:33:06,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:06,360 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 [2022-03-20 07:33:06,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:06,361 INFO L225 Difference]: With dead ends: 341 [2022-03-20 07:33:06,361 INFO L226 Difference]: Without dead ends: 341 [2022-03-20 07:33:06,362 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:06,362 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 133 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:06,362 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 318 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 462 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 07:33:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-03-20 07:33:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 247. [2022-03-20 07:33:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5289256198347108) internal successors, (370), 242 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 374 transitions. [2022-03-20 07:33:06,375 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 374 transitions. Word has length 84 [2022-03-20 07:33:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:06,375 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 374 transitions. [2022-03-20 07:33:06,375 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) [2022-03-20 07:33:06,375 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 374 transitions. [2022-03-20 07:33:06,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-20 07:33:06,376 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:06,376 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:06,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-20 07:33:06,376 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:06,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:06,377 INFO L85 PathProgramCache]: Analyzing trace with hash 710751120, now seen corresponding path program 1 times [2022-03-20 07:33:06,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:06,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193405302] [2022-03-20 07:33:06,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:06,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:33:06,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:06,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193405302] [2022-03-20 07:33:06,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193405302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:06,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:06,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:06,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190431485] [2022-03-20 07:33:06,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:06,490 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:06,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:06,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:06,490 INFO L87 Difference]: Start difference. First operand 247 states and 374 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:07,624 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 [] [2022-03-20 07:33:09,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:11,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:13,681 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 [] [2022-03-20 07:33:13,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:13,999 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-03-20 07:33:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-03-20 07:33:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:14,000 INFO L225 Difference]: With dead ends: 265 [2022-03-20 07:33:14,000 INFO L226 Difference]: Without dead ends: 265 [2022-03-20 07:33:14,001 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:14,001 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 40 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:14,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 481 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 376 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-03-20 07:33:14,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-20 07:33:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2022-03-20 07:33:14,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.524793388429752) internal successors, (369), 242 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:14,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 373 transitions. [2022-03-20 07:33:14,005 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 373 transitions. Word has length 85 [2022-03-20 07:33:14,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:14,005 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 373 transitions. [2022-03-20 07:33:14,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 373 transitions. [2022-03-20 07:33:14,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-20 07:33:14,006 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:14,006 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:14,006 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-20 07:33:14,006 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:14,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1818163604, now seen corresponding path program 1 times [2022-03-20 07:33:14,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:14,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951460635] [2022-03-20 07:33:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:14,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:14,092 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:33:14,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:14,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951460635] [2022-03-20 07:33:14,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951460635] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:14,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:14,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:14,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564183577] [2022-03-20 07:33:14,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:14,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:14,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:14,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:14,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:14,093 INFO L87 Difference]: Start difference. First operand 247 states and 373 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) [2022-03-20 07:33:15,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:17,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:20,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:20,404 INFO L93 Difference]: Finished difference Result 265 states and 397 transitions. [2022-03-20 07:33:20,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:20,404 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 87 [2022-03-20 07:33:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:20,405 INFO L225 Difference]: With dead ends: 265 [2022-03-20 07:33:20,405 INFO L226 Difference]: Without dead ends: 265 [2022-03-20 07:33:20,406 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:20,406 INFO L913 BasicCegarLoop]: 189 mSDtfsCounter, 37 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:20,406 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 481 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 377 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-20 07:33:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-03-20 07:33:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 247. [2022-03-20 07:33:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5206611570247934) internal successors, (368), 242 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:20,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 372 transitions. [2022-03-20 07:33:20,410 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 372 transitions. Word has length 87 [2022-03-20 07:33:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:20,410 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 372 transitions. [2022-03-20 07:33:20,410 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) [2022-03-20 07:33:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 372 transitions. [2022-03-20 07:33:20,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-20 07:33:20,411 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:20,411 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:20,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-20 07:33:20,411 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:20,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:20,412 INFO L85 PathProgramCache]: Analyzing trace with hash 989898955, now seen corresponding path program 1 times [2022-03-20 07:33:20,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:20,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463668967] [2022-03-20 07:33:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:20,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:20,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 07:33:20,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:20,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463668967] [2022-03-20 07:33:20,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463668967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:20,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:20,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:20,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703955931] [2022-03-20 07:33:20,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:20,516 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:20,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:20,516 INFO L87 Difference]: Start difference. First operand 247 states and 372 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:22,524 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 [] [2022-03-20 07:33:22,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:22,862 INFO L93 Difference]: Finished difference Result 255 states and 383 transitions. [2022-03-20 07:33:22,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:22,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-20 07:33:22,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:22,864 INFO L225 Difference]: With dead ends: 255 [2022-03-20 07:33:22,864 INFO L226 Difference]: Without dead ends: 255 [2022-03-20 07:33:22,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:22,864 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 28 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:22,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 495 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:33:22,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-20 07:33:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 247. [2022-03-20 07:33:22,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5165289256198347) internal successors, (367), 242 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 371 transitions. [2022-03-20 07:33:22,868 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 371 transitions. Word has length 88 [2022-03-20 07:33:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:22,869 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 371 transitions. [2022-03-20 07:33:22,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 371 transitions. [2022-03-20 07:33:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 07:33:22,869 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:22,869 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:22,870 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-20 07:33:22,870 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:22,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1607176068, now seen corresponding path program 1 times [2022-03-20 07:33:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:22,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375078467] [2022-03-20 07:33:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:22,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:33:22,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:22,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375078467] [2022-03-20 07:33:22,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375078467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:22,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:22,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:22,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823313706] [2022-03-20 07:33:22,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:22,965 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:22,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:22,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:22,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:22,965 INFO L87 Difference]: Start difference. First operand 247 states and 371 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) [2022-03-20 07:33:24,987 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 [] [2022-03-20 07:33:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:25,388 INFO L93 Difference]: Finished difference Result 339 states and 510 transitions. [2022-03-20 07:33:25,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:25,389 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 92 [2022-03-20 07:33:25,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:25,390 INFO L225 Difference]: With dead ends: 339 [2022-03-20 07:33:25,390 INFO L226 Difference]: Without dead ends: 339 [2022-03-20 07:33:25,390 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:25,390 INFO L913 BasicCegarLoop]: 169 mSDtfsCounter, 73 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:25,390 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 443 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:25,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-03-20 07:33:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 290. [2022-03-20 07:33:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 285 states have (on average 1.543859649122807) internal successors, (440), 285 states have internal predecessors, (440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:25,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 444 transitions. [2022-03-20 07:33:25,395 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 444 transitions. Word has length 92 [2022-03-20 07:33:25,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:25,396 INFO L478 AbstractCegarLoop]: Abstraction has 290 states and 444 transitions. [2022-03-20 07:33:25,396 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) [2022-03-20 07:33:25,396 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 444 transitions. [2022-03-20 07:33:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-20 07:33:25,397 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:25,397 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:25,397 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-20 07:33:25,397 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:25,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:25,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1663097307, now seen corresponding path program 1 times [2022-03-20 07:33:25,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:25,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087081717] [2022-03-20 07:33:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:25,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:25,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:25,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:33:25,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:25,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087081717] [2022-03-20 07:33:25,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087081717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:25,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:25,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:25,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873176310] [2022-03-20 07:33:25,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:25,521 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:25,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:25,523 INFO L87 Difference]: Start difference. First operand 290 states and 444 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) [2022-03-20 07:33:27,531 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 [] [2022-03-20 07:33:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:27,969 INFO L93 Difference]: Finished difference Result 384 states and 586 transitions. [2022-03-20 07:33:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:27,970 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 92 [2022-03-20 07:33:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:27,971 INFO L225 Difference]: With dead ends: 384 [2022-03-20 07:33:27,971 INFO L226 Difference]: Without dead ends: 382 [2022-03-20 07:33:27,971 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:27,971 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 107 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:27,972 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 328 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-03-20 07:33:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 314. [2022-03-20 07:33:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.5760517799352751) internal successors, (487), 309 states have internal predecessors, (487), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 491 transitions. [2022-03-20 07:33:27,977 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 491 transitions. Word has length 92 [2022-03-20 07:33:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:27,977 INFO L478 AbstractCegarLoop]: Abstraction has 314 states and 491 transitions. [2022-03-20 07:33:27,977 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) [2022-03-20 07:33:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 491 transitions. [2022-03-20 07:33:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-20 07:33:27,978 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:27,978 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:27,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-20 07:33:27,978 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:27,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1099971198, now seen corresponding path program 1 times [2022-03-20 07:33:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:27,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121712051] [2022-03-20 07:33:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:27,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:28,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:33:28,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:28,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121712051] [2022-03-20 07:33:28,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121712051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:28,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:28,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:28,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715282208] [2022-03-20 07:33:28,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:28,089 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:28,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:28,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:28,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:28,090 INFO L87 Difference]: Start difference. First operand 314 states and 491 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) [2022-03-20 07:33:30,097 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 [] [2022-03-20 07:33:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:30,540 INFO L93 Difference]: Finished difference Result 421 states and 649 transitions. [2022-03-20 07:33:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:30,540 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 120 [2022-03-20 07:33:30,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:30,542 INFO L225 Difference]: With dead ends: 421 [2022-03-20 07:33:30,542 INFO L226 Difference]: Without dead ends: 421 [2022-03-20 07:33:30,542 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:30,542 INFO L913 BasicCegarLoop]: 116 mSDtfsCounter, 115 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:30,542 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 330 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:30,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-03-20 07:33:30,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 346. [2022-03-20 07:33:30,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 341 states have (on average 1.5777126099706744) internal successors, (538), 341 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 542 transitions. [2022-03-20 07:33:30,547 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 542 transitions. Word has length 120 [2022-03-20 07:33:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:30,547 INFO L478 AbstractCegarLoop]: Abstraction has 346 states and 542 transitions. [2022-03-20 07:33:30,548 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) [2022-03-20 07:33:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 542 transitions. [2022-03-20 07:33:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 07:33:30,548 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:30,548 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:30,548 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-20 07:33:30,549 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:30,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1373336550, now seen corresponding path program 1 times [2022-03-20 07:33:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:30,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755369710] [2022-03-20 07:33:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:30,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:30,662 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-20 07:33:30,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:30,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755369710] [2022-03-20 07:33:30,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755369710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:30,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:30,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:33:30,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867860566] [2022-03-20 07:33:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:30,663 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:33:30,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:30,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:33:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:30,664 INFO L87 Difference]: Start difference. First operand 346 states and 542 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:32,673 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 [] [2022-03-20 07:33:33,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:33,044 INFO L93 Difference]: Finished difference Result 660 states and 1043 transitions. [2022-03-20 07:33:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:33:33,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-03-20 07:33:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:33,046 INFO L225 Difference]: With dead ends: 660 [2022-03-20 07:33:33,046 INFO L226 Difference]: Without dead ends: 660 [2022-03-20 07:33:33,046 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:33,047 INFO L913 BasicCegarLoop]: 363 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:33,047 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 557 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2022-03-20 07:33:33,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2022-03-20 07:33:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 655 states have (on average 1.5862595419847327) internal successors, (1039), 655 states have internal predecessors, (1039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1043 transitions. [2022-03-20 07:33:33,055 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1043 transitions. Word has length 132 [2022-03-20 07:33:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:33,055 INFO L478 AbstractCegarLoop]: Abstraction has 660 states and 1043 transitions. [2022-03-20 07:33:33,056 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1043 transitions. [2022-03-20 07:33:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-20 07:33:33,056 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:33,057 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:33,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-20 07:33:33,057 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:33,057 INFO L85 PathProgramCache]: Analyzing trace with hash 348642629, now seen corresponding path program 1 times [2022-03-20 07:33:33,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:33,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658158942] [2022-03-20 07:33:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:33,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-20 07:33:33,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:33,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658158942] [2022-03-20 07:33:33,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658158942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:33,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:33,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:33:33,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695077280] [2022-03-20 07:33:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:33,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:33:33,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:33:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:33,142 INFO L87 Difference]: Start difference. First operand 660 states and 1043 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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) [2022-03-20 07:33:35,159 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 [] [2022-03-20 07:33:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:35,436 INFO L93 Difference]: Finished difference Result 933 states and 1473 transitions. [2022-03-20 07:33:35,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:33:35,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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 [2022-03-20 07:33:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:35,439 INFO L225 Difference]: With dead ends: 933 [2022-03-20 07:33:35,439 INFO L226 Difference]: Without dead ends: 933 [2022-03-20 07:33:35,439 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:35,440 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:35,440 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:33:35,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2022-03-20 07:33:35,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 933. [2022-03-20 07:33:35,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.5829741379310345) internal successors, (1469), 928 states have internal predecessors, (1469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1473 transitions. [2022-03-20 07:33:35,464 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1473 transitions. Word has length 132 [2022-03-20 07:33:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:35,464 INFO L478 AbstractCegarLoop]: Abstraction has 933 states and 1473 transitions. [2022-03-20 07:33:35,465 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 3 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) [2022-03-20 07:33:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1473 transitions. [2022-03-20 07:33:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:33:35,466 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:35,466 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:35,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-20 07:33:35,467 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:35,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash -2018872788, now seen corresponding path program 1 times [2022-03-20 07:33:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:35,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795282782] [2022-03-20 07:33:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:35,542 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-20 07:33:35,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795282782] [2022-03-20 07:33:35,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795282782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:35,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:35,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:33:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223349854] [2022-03-20 07:33:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:35,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:33:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:33:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:35,543 INFO L87 Difference]: Start difference. First operand 933 states and 1473 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:37,550 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 [] [2022-03-20 07:33:37,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:37,777 INFO L93 Difference]: Finished difference Result 960 states and 1508 transitions. [2022-03-20 07:33:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:33:37,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-20 07:33:37,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:37,779 INFO L225 Difference]: With dead ends: 960 [2022-03-20 07:33:37,780 INFO L226 Difference]: Without dead ends: 960 [2022-03-20 07:33:37,780 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:37,780 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:37,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:33:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-03-20 07:33:37,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-03-20 07:33:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.574869109947644) internal successors, (1504), 955 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1508 transitions. [2022-03-20 07:33:37,791 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1508 transitions. Word has length 133 [2022-03-20 07:33:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:37,791 INFO L478 AbstractCegarLoop]: Abstraction has 960 states and 1508 transitions. [2022-03-20 07:33:37,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1508 transitions. [2022-03-20 07:33:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-20 07:33:37,793 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:37,793 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:37,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-20 07:33:37,793 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash -942319379, now seen corresponding path program 1 times [2022-03-20 07:33:37,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:37,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991618927] [2022-03-20 07:33:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:37,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-20 07:33:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:37,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991618927] [2022-03-20 07:33:37,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991618927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:37,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:37,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 07:33:37,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452930365] [2022-03-20 07:33:37,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:37,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:33:37,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:37,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:33:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:37,868 INFO L87 Difference]: Start difference. First operand 960 states and 1508 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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) [2022-03-20 07:33:39,884 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 [] [2022-03-20 07:33:40,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:40,117 INFO L93 Difference]: Finished difference Result 962 states and 1510 transitions. [2022-03-20 07:33:40,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:33:40,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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 133 [2022-03-20 07:33:40,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:40,120 INFO L225 Difference]: With dead ends: 962 [2022-03-20 07:33:40,120 INFO L226 Difference]: Without dead ends: 962 [2022-03-20 07:33:40,120 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-20 07:33:40,121 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:40,121 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:33:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-20 07:33:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-03-20 07:33:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.573667711598746) internal successors, (1506), 957 states have internal predecessors, (1506), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:40,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1510 transitions. [2022-03-20 07:33:40,132 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1510 transitions. Word has length 133 [2022-03-20 07:33:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:40,132 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1510 transitions. [2022-03-20 07:33:40,132 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 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) [2022-03-20 07:33:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1510 transitions. [2022-03-20 07:33:40,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-20 07:33:40,134 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:40,134 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:33:40,134 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-20 07:33:40,135 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:40,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1318648105, now seen corresponding path program 1 times [2022-03-20 07:33:40,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:40,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424999567] [2022-03-20 07:33:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:40,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:33:40,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:40,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424999567] [2022-03-20 07:33:40,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424999567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:40,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:40,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:40,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010286481] [2022-03-20 07:33:40,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:40,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:40,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:40,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:40,263 INFO L87 Difference]: Start difference. First operand 962 states and 1510 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:42,274 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 [] [2022-03-20 07:33:42,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:42,762 INFO L93 Difference]: Finished difference Result 1063 states and 1638 transitions. [2022-03-20 07:33:42,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:42,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 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 [2022-03-20 07:33:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:42,765 INFO L225 Difference]: With dead ends: 1063 [2022-03-20 07:33:42,765 INFO L226 Difference]: Without dead ends: 1063 [2022-03-20 07:33:42,765 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:42,765 INFO L913 BasicCegarLoop]: 261 mSDtfsCounter, 97 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:42,766 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 624 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 602 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:33:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-03-20 07:33:42,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 962. [2022-03-20 07:33:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5715778474399165) internal successors, (1504), 957 states have internal predecessors, (1504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1508 transitions. [2022-03-20 07:33:42,782 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1508 transitions. Word has length 196 [2022-03-20 07:33:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:42,782 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1508 transitions. [2022-03-20 07:33:42,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:42,783 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1508 transitions. [2022-03-20 07:33:42,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-20 07:33:42,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:42,784 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:33:42,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-20 07:33:42,784 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:42,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1012366808, now seen corresponding path program 1 times [2022-03-20 07:33:42,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:42,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700668778] [2022-03-20 07:33:42,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:42,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:42,903 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:33:42,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:42,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700668778] [2022-03-20 07:33:42,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700668778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:42,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:42,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:42,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733987342] [2022-03-20 07:33:42,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:42,905 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:42,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:42,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:42,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:42,906 INFO L87 Difference]: Start difference. First operand 962 states and 1508 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:44,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:45,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:45,397 INFO L93 Difference]: Finished difference Result 1053 states and 1622 transitions. [2022-03-20 07:33:45,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:45,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-20 07:33:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:45,400 INFO L225 Difference]: With dead ends: 1053 [2022-03-20 07:33:45,400 INFO L226 Difference]: Without dead ends: 1053 [2022-03-20 07:33:45,400 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:45,401 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 89 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:45,401 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 614 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-20 07:33:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2022-03-20 07:33:45,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 962. [2022-03-20 07:33:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5694879832810866) internal successors, (1502), 957 states have internal predecessors, (1502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1506 transitions. [2022-03-20 07:33:45,411 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1506 transitions. Word has length 197 [2022-03-20 07:33:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:45,411 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1506 transitions. [2022-03-20 07:33:45,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1506 transitions. [2022-03-20 07:33:45,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-03-20 07:33:45,413 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:45,413 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:33:45,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-20 07:33:45,413 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:45,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:45,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2003849284, now seen corresponding path program 1 times [2022-03-20 07:33:45,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:45,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743211701] [2022-03-20 07:33:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:33:45,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:45,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743211701] [2022-03-20 07:33:45,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743211701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:45,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:45,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:45,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485298823] [2022-03-20 07:33:45,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:45,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:45,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:45,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:45,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:45,519 INFO L87 Difference]: Start difference. First operand 962 states and 1506 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:47,527 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 [] [2022-03-20 07:33:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:47,923 INFO L93 Difference]: Finished difference Result 1158 states and 1753 transitions. [2022-03-20 07:33:47,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:47,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 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 211 [2022-03-20 07:33:47,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:47,926 INFO L225 Difference]: With dead ends: 1158 [2022-03-20 07:33:47,926 INFO L226 Difference]: Without dead ends: 1158 [2022-03-20 07:33:47,926 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:47,927 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 135 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:47,927 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:47,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-20 07:33:47,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 962. [2022-03-20 07:33:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.554858934169279) internal successors, (1488), 957 states have internal predecessors, (1488), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1492 transitions. [2022-03-20 07:33:47,938 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1492 transitions. Word has length 211 [2022-03-20 07:33:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:47,938 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1492 transitions. [2022-03-20 07:33:47,938 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:47,938 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1492 transitions. [2022-03-20 07:33:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 07:33:47,940 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:47,959 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:33:47,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-20 07:33:47,960 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:47,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:47,960 INFO L85 PathProgramCache]: Analyzing trace with hash -642847624, now seen corresponding path program 1 times [2022-03-20 07:33:47,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:47,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454429944] [2022-03-20 07:33:47,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:47,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:48,080 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:33:48,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:48,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454429944] [2022-03-20 07:33:48,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454429944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:48,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:48,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:48,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805151703] [2022-03-20 07:33:48,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:48,081 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:48,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:48,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:48,081 INFO L87 Difference]: Start difference. First operand 962 states and 1492 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:50,103 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 [] [2022-03-20 07:33:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:50,516 INFO L93 Difference]: Finished difference Result 1158 states and 1739 transitions. [2022-03-20 07:33:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-20 07:33:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:50,519 INFO L225 Difference]: With dead ends: 1158 [2022-03-20 07:33:50,519 INFO L226 Difference]: Without dead ends: 1158 [2022-03-20 07:33:50,519 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:50,520 INFO L913 BasicCegarLoop]: 110 mSDtfsCounter, 132 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:50,520 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 318 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:33:50,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2022-03-20 07:33:50,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 962. [2022-03-20 07:33:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5402298850574712) internal successors, (1474), 957 states have internal predecessors, (1474), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:50,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1478 transitions. [2022-03-20 07:33:50,530 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1478 transitions. Word has length 213 [2022-03-20 07:33:50,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:50,530 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1478 transitions. [2022-03-20 07:33:50,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1478 transitions. [2022-03-20 07:33:50,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-20 07:33:50,532 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:50,532 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:33:50,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-20 07:33:50,532 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:50,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:50,533 INFO L85 PathProgramCache]: Analyzing trace with hash 554678676, now seen corresponding path program 1 times [2022-03-20 07:33:50,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:50,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771091618] [2022-03-20 07:33:50,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:50,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:50,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:33:50,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:50,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771091618] [2022-03-20 07:33:50,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771091618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:50,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:50,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:50,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215429322] [2022-03-20 07:33:50,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:50,686 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:50,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:50,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:50,687 INFO L87 Difference]: Start difference. First operand 962 states and 1478 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:52,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:54,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:56,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:58,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:33:58,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:33:58,666 INFO L93 Difference]: Finished difference Result 1284 states and 1934 transitions. [2022-03-20 07:33:58,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:33:58,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-20 07:33:58,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:33:58,670 INFO L225 Difference]: With dead ends: 1284 [2022-03-20 07:33:58,670 INFO L226 Difference]: Without dead ends: 1284 [2022-03-20 07:33:58,670 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:33:58,670 INFO L913 BasicCegarLoop]: 127 mSDtfsCounter, 118 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 58 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-03-20 07:33:58,670 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 357 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 471 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-03-20 07:33:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2022-03-20 07:33:58,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1019. [2022-03-20 07:33:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1014 states have (on average 1.5157790927021697) internal successors, (1537), 1014 states have internal predecessors, (1537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1541 transitions. [2022-03-20 07:33:58,682 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1541 transitions. Word has length 213 [2022-03-20 07:33:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:33:58,682 INFO L478 AbstractCegarLoop]: Abstraction has 1019 states and 1541 transitions. [2022-03-20 07:33:58,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:33:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1541 transitions. [2022-03-20 07:33:58,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 07:33:58,684 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:33:58,684 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:33:58,684 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-20 07:33:58,684 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:33:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:33:58,684 INFO L85 PathProgramCache]: Analyzing trace with hash -133422725, now seen corresponding path program 1 times [2022-03-20 07:33:58,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:33:58,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24431611] [2022-03-20 07:33:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:33:58,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:33:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:33:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:33:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:33:58,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:33:58,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24431611] [2022-03-20 07:33:58,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24431611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:33:58,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:33:58,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:33:58,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255397552] [2022-03-20 07:33:58,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:33:58,794 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:33:58,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:33:58,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:33:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:33:58,794 INFO L87 Difference]: Start difference. First operand 1019 states and 1541 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) [2022-03-20 07:34:00,807 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 [] [2022-03-20 07:34:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:01,221 INFO L93 Difference]: Finished difference Result 1185 states and 1746 transitions. [2022-03-20 07:34:01,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:01,222 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 214 [2022-03-20 07:34:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:01,225 INFO L225 Difference]: With dead ends: 1185 [2022-03-20 07:34:01,225 INFO L226 Difference]: Without dead ends: 1185 [2022-03-20 07:34:01,225 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:01,225 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 123 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:01,226 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 338 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 446 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:01,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2022-03-20 07:34:01,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1019. [2022-03-20 07:34:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1014 states have (on average 1.4990138067061145) internal successors, (1520), 1014 states have internal predecessors, (1520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1524 transitions. [2022-03-20 07:34:01,236 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1524 transitions. Word has length 214 [2022-03-20 07:34:01,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:01,237 INFO L478 AbstractCegarLoop]: Abstraction has 1019 states and 1524 transitions. [2022-03-20 07:34:01,237 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) [2022-03-20 07:34:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1524 transitions. [2022-03-20 07:34:01,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-03-20 07:34:01,238 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:01,239 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:01,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-20 07:34:01,239 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:01,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash -168214403, now seen corresponding path program 1 times [2022-03-20 07:34:01,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:01,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576535382] [2022-03-20 07:34:01,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:01,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:01,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:01,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576535382] [2022-03-20 07:34:01,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576535382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:01,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:01,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008505545] [2022-03-20 07:34:01,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:01,344 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:01,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:01,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:01,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:01,344 INFO L87 Difference]: Start difference. First operand 1019 states and 1524 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) [2022-03-20 07:34:03,356 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 [] [2022-03-20 07:34:03,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:03,754 INFO L93 Difference]: Finished difference Result 1254 states and 1863 transitions. [2022-03-20 07:34:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:03,755 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 214 [2022-03-20 07:34:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:03,758 INFO L225 Difference]: With dead ends: 1254 [2022-03-20 07:34:03,758 INFO L226 Difference]: Without dead ends: 1254 [2022-03-20 07:34:03,758 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:03,758 INFO L913 BasicCegarLoop]: 120 mSDtfsCounter, 117 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:03,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 338 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:03,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2022-03-20 07:34:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1022. [2022-03-20 07:34:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1017 states have (on average 1.4857423795476892) internal successors, (1511), 1017 states have internal predecessors, (1511), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1515 transitions. [2022-03-20 07:34:03,769 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1515 transitions. Word has length 214 [2022-03-20 07:34:03,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:03,769 INFO L478 AbstractCegarLoop]: Abstraction has 1022 states and 1515 transitions. [2022-03-20 07:34:03,769 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) [2022-03-20 07:34:03,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1515 transitions. [2022-03-20 07:34:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-03-20 07:34:03,771 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:03,771 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:03,771 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-20 07:34:03,771 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:03,772 INFO L85 PathProgramCache]: Analyzing trace with hash -443142085, now seen corresponding path program 1 times [2022-03-20 07:34:03,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:03,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529972816] [2022-03-20 07:34:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:03,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:03,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:03,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529972816] [2022-03-20 07:34:03,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529972816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:03,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:03,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:03,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440668533] [2022-03-20 07:34:03,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:03,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:03,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:03,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:03,897 INFO L87 Difference]: Start difference. First operand 1022 states and 1515 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:05,918 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 [] [2022-03-20 07:34:06,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:06,305 INFO L93 Difference]: Finished difference Result 1312 states and 1921 transitions. [2022-03-20 07:34:06,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:06,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 215 [2022-03-20 07:34:06,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:06,309 INFO L225 Difference]: With dead ends: 1312 [2022-03-20 07:34:06,309 INFO L226 Difference]: Without dead ends: 1312 [2022-03-20 07:34:06,309 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:06,309 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 116 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:06,309 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 342 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:06,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-03-20 07:34:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1083. [2022-03-20 07:34:06,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4610389610389611) internal successors, (1575), 1078 states have internal predecessors, (1575), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:06,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1579 transitions. [2022-03-20 07:34:06,319 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1579 transitions. Word has length 215 [2022-03-20 07:34:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:06,319 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1579 transitions. [2022-03-20 07:34:06,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1579 transitions. [2022-03-20 07:34:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-03-20 07:34:06,321 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:06,322 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:06,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-20 07:34:06,322 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:06,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:06,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1150066281, now seen corresponding path program 1 times [2022-03-20 07:34:06,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:06,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888857387] [2022-03-20 07:34:06,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:06,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:06,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:06,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888857387] [2022-03-20 07:34:06,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888857387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:06,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:06,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:06,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330281056] [2022-03-20 07:34:06,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:06,423 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:06,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:06,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:06,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:06,424 INFO L87 Difference]: Start difference. First operand 1083 states and 1579 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:08,746 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 [] [2022-03-20 07:34:10,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:12,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:13,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:13,220 INFO L93 Difference]: Finished difference Result 1147 states and 1659 transitions. [2022-03-20 07:34:13,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:13,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-03-20 07:34:13,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:13,223 INFO L225 Difference]: With dead ends: 1147 [2022-03-20 07:34:13,223 INFO L226 Difference]: Without dead ends: 1147 [2022-03-20 07:34:13,223 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:13,223 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 72 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:13,224 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 584 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 542 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-03-20 07:34:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-03-20 07:34:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1083. [2022-03-20 07:34:13,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4591836734693877) internal successors, (1573), 1078 states have internal predecessors, (1573), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1577 transitions. [2022-03-20 07:34:13,232 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1577 transitions. Word has length 218 [2022-03-20 07:34:13,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:13,233 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1577 transitions. [2022-03-20 07:34:13,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1577 transitions. [2022-03-20 07:34:13,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-20 07:34:13,235 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:13,235 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:13,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-20 07:34:13,235 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash -546969239, now seen corresponding path program 1 times [2022-03-20 07:34:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:13,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251632779] [2022-03-20 07:34:13,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:13,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:13,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:13,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:13,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251632779] [2022-03-20 07:34:13,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251632779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:13,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:13,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:13,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123395633] [2022-03-20 07:34:13,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:13,340 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:13,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:13,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:13,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:13,341 INFO L87 Difference]: Start difference. First operand 1083 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:15,355 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 [] [2022-03-20 07:34:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:15,766 INFO L93 Difference]: Finished difference Result 1139 states and 1647 transitions. [2022-03-20 07:34:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:15,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-03-20 07:34:15,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:15,770 INFO L225 Difference]: With dead ends: 1139 [2022-03-20 07:34:15,770 INFO L226 Difference]: Without dead ends: 1139 [2022-03-20 07:34:15,770 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:15,771 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 66 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:15,772 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 576 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 530 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:15,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-03-20 07:34:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1083. [2022-03-20 07:34:15,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4573283858998145) internal successors, (1571), 1078 states have internal predecessors, (1571), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:15,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1575 transitions. [2022-03-20 07:34:15,781 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1575 transitions. Word has length 219 [2022-03-20 07:34:15,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:15,781 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1575 transitions. [2022-03-20 07:34:15,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:15,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1575 transitions. [2022-03-20 07:34:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-03-20 07:34:15,783 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:15,783 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:15,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-20 07:34:15,783 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:15,784 INFO L85 PathProgramCache]: Analyzing trace with hash -547343874, now seen corresponding path program 1 times [2022-03-20 07:34:15,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:15,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001782711] [2022-03-20 07:34:15,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:15,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:15,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 297 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:15,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:15,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001782711] [2022-03-20 07:34:15,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001782711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:15,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:15,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360925140] [2022-03-20 07:34:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:15,919 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:15,920 INFO L87 Difference]: Start difference. First operand 1083 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:17,931 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 [] [2022-03-20 07:34:18,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:18,338 INFO L93 Difference]: Finished difference Result 1139 states and 1645 transitions. [2022-03-20 07:34:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:18,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 221 [2022-03-20 07:34:18,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:18,341 INFO L225 Difference]: With dead ends: 1139 [2022-03-20 07:34:18,341 INFO L226 Difference]: Without dead ends: 1139 [2022-03-20 07:34:18,341 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:18,341 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 62 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:18,342 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 574 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 529 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-03-20 07:34:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1083. [2022-03-20 07:34:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.455473098330241) internal successors, (1569), 1078 states have internal predecessors, (1569), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1573 transitions. [2022-03-20 07:34:18,350 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1573 transitions. Word has length 221 [2022-03-20 07:34:18,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:18,350 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1573 transitions. [2022-03-20 07:34:18,351 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1573 transitions. [2022-03-20 07:34:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-20 07:34:18,352 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:18,352 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:18,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-20 07:34:18,353 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:18,353 INFO L85 PathProgramCache]: Analyzing trace with hash 29557597, now seen corresponding path program 1 times [2022-03-20 07:34:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:18,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172270854] [2022-03-20 07:34:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:18,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:18,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:18,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172270854] [2022-03-20 07:34:18,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172270854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:18,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:18,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:18,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996207371] [2022-03-20 07:34:18,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:18,456 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:18,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:18,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:18,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:18,456 INFO L87 Difference]: Start difference. First operand 1083 states and 1573 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:20,471 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 [] [2022-03-20 07:34:20,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:20,877 INFO L93 Difference]: Finished difference Result 1249 states and 1784 transitions. [2022-03-20 07:34:20,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:20,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-03-20 07:34:20,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:20,882 INFO L225 Difference]: With dead ends: 1249 [2022-03-20 07:34:20,882 INFO L226 Difference]: Without dead ends: 1249 [2022-03-20 07:34:20,882 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:20,882 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:20,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:20,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-20 07:34:20,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-03-20 07:34:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4452690166975881) internal successors, (1558), 1078 states have internal predecessors, (1558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:20,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1562 transitions. [2022-03-20 07:34:20,892 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1562 transitions. Word has length 222 [2022-03-20 07:34:20,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:20,892 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1562 transitions. [2022-03-20 07:34:20,892 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:20,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1562 transitions. [2022-03-20 07:34:20,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-20 07:34:20,894 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:20,894 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:20,894 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-20 07:34:20,894 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:20,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:20,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1817226739, now seen corresponding path program 1 times [2022-03-20 07:34:20,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:20,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837626324] [2022-03-20 07:34:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:20,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:21,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837626324] [2022-03-20 07:34:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837626324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:21,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:21,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:21,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166684234] [2022-03-20 07:34:21,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:21,006 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:21,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:21,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:21,007 INFO L87 Difference]: Start difference. First operand 1083 states and 1562 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:23,027 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 [] [2022-03-20 07:34:23,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:23,395 INFO L93 Difference]: Finished difference Result 1123 states and 1606 transitions. [2022-03-20 07:34:23,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:23,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 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 223 [2022-03-20 07:34:23,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:23,399 INFO L225 Difference]: With dead ends: 1123 [2022-03-20 07:34:23,399 INFO L226 Difference]: Without dead ends: 1123 [2022-03-20 07:34:23,399 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:23,399 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 49 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:23,399 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 562 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-03-20 07:34:23,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1083. [2022-03-20 07:34:23,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.443413729128015) internal successors, (1556), 1078 states have internal predecessors, (1556), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1560 transitions. [2022-03-20 07:34:23,408 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1560 transitions. Word has length 223 [2022-03-20 07:34:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:23,409 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1560 transitions. [2022-03-20 07:34:23,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 4 states have internal predecessors, (142), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1560 transitions. [2022-03-20 07:34:23,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-20 07:34:23,411 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:23,411 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:23,412 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-20 07:34:23,412 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:23,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:23,412 INFO L85 PathProgramCache]: Analyzing trace with hash 938283475, now seen corresponding path program 1 times [2022-03-20 07:34:23,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:23,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847124651] [2022-03-20 07:34:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:23,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:23,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847124651] [2022-03-20 07:34:23,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847124651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:23,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:23,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:23,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199800326] [2022-03-20 07:34:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:23,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:23,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:23,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:23,541 INFO L87 Difference]: Start difference. First operand 1083 states and 1560 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:25,548 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 [] [2022-03-20 07:34:25,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:25,929 INFO L93 Difference]: Finished difference Result 1123 states and 1604 transitions. [2022-03-20 07:34:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:25,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-03-20 07:34:25,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:25,931 INFO L225 Difference]: With dead ends: 1123 [2022-03-20 07:34:25,931 INFO L226 Difference]: Without dead ends: 1123 [2022-03-20 07:34:25,931 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:25,932 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:25,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 560 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:25,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2022-03-20 07:34:25,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1083. [2022-03-20 07:34:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4415584415584415) internal successors, (1554), 1078 states have internal predecessors, (1554), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1558 transitions. [2022-03-20 07:34:25,941 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1558 transitions. Word has length 224 [2022-03-20 07:34:25,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:25,941 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1558 transitions. [2022-03-20 07:34:25,941 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1558 transitions. [2022-03-20 07:34:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-20 07:34:25,942 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:25,943 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-20 07:34:25,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-20 07:34:25,943 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:25,943 INFO L85 PathProgramCache]: Analyzing trace with hash -249721456, now seen corresponding path program 1 times [2022-03-20 07:34:25,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:25,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484647304] [2022-03-20 07:34:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:25,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:26,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484647304] [2022-03-20 07:34:26,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484647304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:26,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:26,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:26,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815494361] [2022-03-20 07:34:26,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:26,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:26,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:26,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:26,068 INFO L87 Difference]: Start difference. First operand 1083 states and 1558 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:28,075 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 [] [2022-03-20 07:34:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:28,460 INFO L93 Difference]: Finished difference Result 1119 states and 1598 transitions. [2022-03-20 07:34:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:28,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 224 [2022-03-20 07:34:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:28,462 INFO L225 Difference]: With dead ends: 1119 [2022-03-20 07:34:28,462 INFO L226 Difference]: Without dead ends: 1119 [2022-03-20 07:34:28,463 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:28,463 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 45 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:28,463 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 556 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:28,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2022-03-20 07:34:28,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1083. [2022-03-20 07:34:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4397031539888683) internal successors, (1552), 1078 states have internal predecessors, (1552), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:28,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1556 transitions. [2022-03-20 07:34:28,472 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1556 transitions. Word has length 224 [2022-03-20 07:34:28,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:28,472 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1556 transitions. [2022-03-20 07:34:28,472 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1556 transitions. [2022-03-20 07:34:28,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-20 07:34:28,474 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:28,474 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-20 07:34:28,474 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-20 07:34:28,474 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:28,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:28,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1302900628, now seen corresponding path program 1 times [2022-03-20 07:34:28,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:28,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565432527] [2022-03-20 07:34:28,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:28,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:28,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:28,579 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:28,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565432527] [2022-03-20 07:34:28,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565432527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:28,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:28,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:28,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409807088] [2022-03-20 07:34:28,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:28,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:28,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:28,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:28,580 INFO L87 Difference]: Start difference. First operand 1083 states and 1556 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:30,599 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 [] [2022-03-20 07:34:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:31,004 INFO L93 Difference]: Finished difference Result 1249 states and 1767 transitions. [2022-03-20 07:34:31,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:31,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-03-20 07:34:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:31,006 INFO L225 Difference]: With dead ends: 1249 [2022-03-20 07:34:31,006 INFO L226 Difference]: Without dead ends: 1249 [2022-03-20 07:34:31,006 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:31,007 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 109 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:31,007 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-20 07:34:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-03-20 07:34:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4294990723562153) internal successors, (1541), 1078 states have internal predecessors, (1541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1545 transitions. [2022-03-20 07:34:31,016 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1545 transitions. Word has length 225 [2022-03-20 07:34:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:31,016 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1545 transitions. [2022-03-20 07:34:31,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1545 transitions. [2022-03-20 07:34:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-03-20 07:34:31,017 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:31,018 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-03-20 07:34:31,018 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-20 07:34:31,018 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:31,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:31,018 INFO L85 PathProgramCache]: Analyzing trace with hash 519324707, now seen corresponding path program 1 times [2022-03-20 07:34:31,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:31,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323343442] [2022-03-20 07:34:31,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:31,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:31,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:31,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323343442] [2022-03-20 07:34:31,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323343442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:31,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:31,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:31,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57027284] [2022-03-20 07:34:31,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:31,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:31,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:31,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:31,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:31,131 INFO L87 Difference]: Start difference. First operand 1083 states and 1545 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:33,143 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 [] [2022-03-20 07:34:33,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:33,496 INFO L93 Difference]: Finished difference Result 1115 states and 1579 transitions. [2022-03-20 07:34:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:33,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 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 227 [2022-03-20 07:34:33,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:33,498 INFO L225 Difference]: With dead ends: 1115 [2022-03-20 07:34:33,498 INFO L226 Difference]: Without dead ends: 1115 [2022-03-20 07:34:33,498 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:33,498 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 40 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:33,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 552 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2022-03-20 07:34:33,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1083. [2022-03-20 07:34:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.427643784786642) internal successors, (1539), 1078 states have internal predecessors, (1539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1543 transitions. [2022-03-20 07:34:33,510 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1543 transitions. Word has length 227 [2022-03-20 07:34:33,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:33,510 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1543 transitions. [2022-03-20 07:34:33,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1543 transitions. [2022-03-20 07:34:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-20 07:34:33,512 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:33,512 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2022-03-20 07:34:33,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-20 07:34:33,512 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:33,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:33,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2136203219, now seen corresponding path program 1 times [2022-03-20 07:34:33,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:33,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995690576] [2022-03-20 07:34:33,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 315 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:33,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:33,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995690576] [2022-03-20 07:34:33,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995690576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:33,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:33,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:33,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814132989] [2022-03-20 07:34:33,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:33,656 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:33,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:33,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:33,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:33,657 INFO L87 Difference]: Start difference. First operand 1083 states and 1543 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:35,665 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 [] [2022-03-20 07:34:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:36,061 INFO L93 Difference]: Finished difference Result 1249 states and 1757 transitions. [2022-03-20 07:34:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:36,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 228 [2022-03-20 07:34:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:36,063 INFO L225 Difference]: With dead ends: 1249 [2022-03-20 07:34:36,063 INFO L226 Difference]: Without dead ends: 1249 [2022-03-20 07:34:36,064 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:36,064 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 101 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:36,067 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:36,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-03-20 07:34:36,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1083. [2022-03-20 07:34:36,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1078 states have (on average 1.4202226345083488) internal successors, (1531), 1078 states have internal predecessors, (1531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:36,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1535 transitions. [2022-03-20 07:34:36,079 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1535 transitions. Word has length 228 [2022-03-20 07:34:36,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:36,080 INFO L478 AbstractCegarLoop]: Abstraction has 1083 states and 1535 transitions. [2022-03-20 07:34:36,080 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1535 transitions. [2022-03-20 07:34:36,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-03-20 07:34:36,081 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:36,081 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 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] [2022-03-20 07:34:36,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-20 07:34:36,081 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:36,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2097942340, now seen corresponding path program 1 times [2022-03-20 07:34:36,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:36,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842656929] [2022-03-20 07:34:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:36,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:36,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:36,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842656929] [2022-03-20 07:34:36,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842656929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:36,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:36,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:36,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380202175] [2022-03-20 07:34:36,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:36,218 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:36,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:36,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:36,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:36,219 INFO L87 Difference]: Start difference. First operand 1083 states and 1535 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:38,235 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 [] [2022-03-20 07:34:38,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:38,642 INFO L93 Difference]: Finished difference Result 1375 states and 1938 transitions. [2022-03-20 07:34:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:38,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 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 228 [2022-03-20 07:34:38,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:38,646 INFO L225 Difference]: With dead ends: 1375 [2022-03-20 07:34:38,646 INFO L226 Difference]: Without dead ends: 1375 [2022-03-20 07:34:38,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:38,647 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 99 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:38,647 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 340 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:38,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2022-03-20 07:34:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 1188. [2022-03-20 07:34:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1183 states have (on average 1.4142011834319526) internal successors, (1673), 1183 states have internal predecessors, (1673), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1677 transitions. [2022-03-20 07:34:38,656 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1677 transitions. Word has length 228 [2022-03-20 07:34:38,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:38,656 INFO L478 AbstractCegarLoop]: Abstraction has 1188 states and 1677 transitions. [2022-03-20 07:34:38,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1677 transitions. [2022-03-20 07:34:38,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-03-20 07:34:38,658 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:38,658 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:34:38,658 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-20 07:34:38,658 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:38,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:38,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1089527269, now seen corresponding path program 1 times [2022-03-20 07:34:38,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:38,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141964608] [2022-03-20 07:34:38,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:38,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:38,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:38,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:38,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141964608] [2022-03-20 07:34:38,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141964608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:38,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:38,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:38,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937898270] [2022-03-20 07:34:38,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:38,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:38,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:38,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:38,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:38,778 INFO L87 Difference]: Start difference. First operand 1188 states and 1677 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:40,796 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 [] [2022-03-20 07:34:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:41,137 INFO L93 Difference]: Finished difference Result 1208 states and 1697 transitions. [2022-03-20 07:34:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:41,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 229 [2022-03-20 07:34:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:41,139 INFO L225 Difference]: With dead ends: 1208 [2022-03-20 07:34:41,139 INFO L226 Difference]: Without dead ends: 1208 [2022-03-20 07:34:41,139 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:41,140 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:41,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 538 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:34:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-03-20 07:34:41,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1188. [2022-03-20 07:34:41,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1183 states have (on average 1.4125105663567201) internal successors, (1671), 1183 states have internal predecessors, (1671), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1675 transitions. [2022-03-20 07:34:41,149 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1675 transitions. Word has length 229 [2022-03-20 07:34:41,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:41,149 INFO L478 AbstractCegarLoop]: Abstraction has 1188 states and 1675 transitions. [2022-03-20 07:34:41,149 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:41,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1675 transitions. [2022-03-20 07:34:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-03-20 07:34:41,151 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:41,151 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:34:41,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-20 07:34:41,151 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:41,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:41,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1676322048, now seen corresponding path program 1 times [2022-03-20 07:34:41,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:41,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439640899] [2022-03-20 07:34:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:41,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:41,296 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:41,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:41,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439640899] [2022-03-20 07:34:41,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439640899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:41,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:41,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:41,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545725905] [2022-03-20 07:34:41,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:41,296 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:41,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:41,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:41,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:41,297 INFO L87 Difference]: Start difference. First operand 1188 states and 1675 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:43,305 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 [] [2022-03-20 07:34:43,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:43,699 INFO L93 Difference]: Finished difference Result 1480 states and 2075 transitions. [2022-03-20 07:34:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:43,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 230 [2022-03-20 07:34:43,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:43,701 INFO L225 Difference]: With dead ends: 1480 [2022-03-20 07:34:43,701 INFO L226 Difference]: Without dead ends: 1480 [2022-03-20 07:34:43,701 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:43,701 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 97 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:43,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 340 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:43,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2022-03-20 07:34:43,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1299. [2022-03-20 07:34:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.4080370942812983) internal successors, (1822), 1294 states have internal predecessors, (1822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1826 transitions. [2022-03-20 07:34:43,712 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1826 transitions. Word has length 230 [2022-03-20 07:34:43,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:43,712 INFO L478 AbstractCegarLoop]: Abstraction has 1299 states and 1826 transitions. [2022-03-20 07:34:43,712 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:43,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1826 transitions. [2022-03-20 07:34:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-03-20 07:34:43,714 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:43,714 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:43,714 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-20 07:34:43,714 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash -8501446, now seen corresponding path program 1 times [2022-03-20 07:34:43,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:43,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768415569] [2022-03-20 07:34:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:43,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:43,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:43,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768415569] [2022-03-20 07:34:43,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768415569] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:43,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:43,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:43,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328000714] [2022-03-20 07:34:43,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:43,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:43,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:43,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:43,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:43,857 INFO L87 Difference]: Start difference. First operand 1299 states and 1826 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:45,875 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 [] [2022-03-20 07:34:46,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:46,278 INFO L93 Difference]: Finished difference Result 1465 states and 2040 transitions. [2022-03-20 07:34:46,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:46,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 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 231 [2022-03-20 07:34:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:46,280 INFO L225 Difference]: With dead ends: 1465 [2022-03-20 07:34:46,280 INFO L226 Difference]: Without dead ends: 1465 [2022-03-20 07:34:46,280 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:46,281 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 96 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:46,281 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 340 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:46,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2022-03-20 07:34:46,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1299. [2022-03-20 07:34:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 1294 states have (on average 1.401854714064915) internal successors, (1814), 1294 states have internal predecessors, (1814), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1818 transitions. [2022-03-20 07:34:46,291 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1818 transitions. Word has length 231 [2022-03-20 07:34:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:46,291 INFO L478 AbstractCegarLoop]: Abstraction has 1299 states and 1818 transitions. [2022-03-20 07:34:46,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1818 transitions. [2022-03-20 07:34:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-20 07:34:46,293 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:46,293 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:34:46,293 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-20 07:34:46,293 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:46,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1801789431, now seen corresponding path program 1 times [2022-03-20 07:34:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:46,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86090625] [2022-03-20 07:34:46,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:46,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:46,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86090625] [2022-03-20 07:34:46,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86090625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:46,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:46,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84468098] [2022-03-20 07:34:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:46,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:46,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:46,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:46,402 INFO L87 Difference]: Start difference. First operand 1299 states and 1818 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:49,066 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 [] [2022-03-20 07:34:51,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:34:51,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:51,470 INFO L93 Difference]: Finished difference Result 1690 states and 2353 transitions. [2022-03-20 07:34:51,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:51,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-03-20 07:34:51,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:51,472 INFO L225 Difference]: With dead ends: 1690 [2022-03-20 07:34:51,472 INFO L226 Difference]: Without dead ends: 1690 [2022-03-20 07:34:51,472 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:51,473 INFO L913 BasicCegarLoop]: 122 mSDtfsCounter, 94 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:51,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 342 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-20 07:34:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-03-20 07:34:51,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1515. [2022-03-20 07:34:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3986754966887418) internal successors, (2112), 1510 states have internal predecessors, (2112), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:51,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2116 transitions. [2022-03-20 07:34:51,483 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2116 transitions. Word has length 234 [2022-03-20 07:34:51,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:51,483 INFO L478 AbstractCegarLoop]: Abstraction has 1515 states and 2116 transitions. [2022-03-20 07:34:51,483 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2116 transitions. [2022-03-20 07:34:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-20 07:34:51,485 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:51,485 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:34:51,485 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-20 07:34:51,485 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash -658958062, now seen corresponding path program 1 times [2022-03-20 07:34:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477469068] [2022-03-20 07:34:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-03-20 07:34:51,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:51,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477469068] [2022-03-20 07:34:51,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477469068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:51,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:51,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:34:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193348304] [2022-03-20 07:34:51,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:51,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:34:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:51,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:34:51,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:34:51,596 INFO L87 Difference]: Start difference. First operand 1515 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:53,604 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 [] [2022-03-20 07:34:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:54,013 INFO L93 Difference]: Finished difference Result 1681 states and 2330 transitions. [2022-03-20 07:34:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:34:54,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 235 [2022-03-20 07:34:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:54,015 INFO L225 Difference]: With dead ends: 1681 [2022-03-20 07:34:54,015 INFO L226 Difference]: Without dead ends: 1681 [2022-03-20 07:34:54,015 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:54,016 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 93 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:54,016 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 350 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:34:54,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-03-20 07:34:54,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1515. [2022-03-20 07:34:54,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1510 states have (on average 1.3933774834437087) internal successors, (2104), 1510 states have internal predecessors, (2104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2108 transitions. [2022-03-20 07:34:54,026 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2108 transitions. Word has length 235 [2022-03-20 07:34:54,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:54,026 INFO L478 AbstractCegarLoop]: Abstraction has 1515 states and 2108 transitions. [2022-03-20 07:34:54,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2108 transitions. [2022-03-20 07:34:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 07:34:54,028 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:54,028 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:54,028 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-20 07:34:54,029 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:54,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1135293253, now seen corresponding path program 1 times [2022-03-20 07:34:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:54,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580563022] [2022-03-20 07:34:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-20 07:34:54,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580563022] [2022-03-20 07:34:54,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580563022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:34:54,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:34:54,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:34:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45062013] [2022-03-20 07:34:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:34:54,234 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:34:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:34:54,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:34:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:34:54,234 INFO L87 Difference]: Start difference. First operand 1515 states and 2108 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:56,243 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 [] [2022-03-20 07:34:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:34:56,966 INFO L93 Difference]: Finished difference Result 1983 states and 2735 transitions. [2022-03-20 07:34:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:34:56,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-20 07:34:56,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:34:56,969 INFO L225 Difference]: With dead ends: 1983 [2022-03-20 07:34:56,969 INFO L226 Difference]: Without dead ends: 1983 [2022-03-20 07:34:56,969 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-20 07:34:56,970 INFO L913 BasicCegarLoop]: 239 mSDtfsCounter, 303 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:34:56,970 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 762 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 765 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 07:34:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-03-20 07:34:56,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1581. [2022-03-20 07:34:56,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1581 states, 1576 states have (on average 1.3826142131979695) internal successors, (2179), 1576 states have internal predecessors, (2179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2183 transitions. [2022-03-20 07:34:56,994 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2183 transitions. Word has length 239 [2022-03-20 07:34:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:34:56,995 INFO L478 AbstractCegarLoop]: Abstraction has 1581 states and 2183 transitions. [2022-03-20 07:34:56,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:34:56,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2183 transitions. [2022-03-20 07:34:56,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 07:34:56,997 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:34:56,997 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:34:56,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-20 07:34:56,997 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:34:56,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:34:56,997 INFO L85 PathProgramCache]: Analyzing trace with hash -2083120634, now seen corresponding path program 1 times [2022-03-20 07:34:56,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:34:56,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734625206] [2022-03-20 07:34:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:56,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:34:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:34:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 320 proven. 54 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:34:57,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:34:57,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734625206] [2022-03-20 07:34:57,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734625206] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:34:57,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791825262] [2022-03-20 07:34:57,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:34:57,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:34:57,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:34:57,276 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) [2022-03-20 07:34:57,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 07:34:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:34:58,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 30 conjunts are in the unsatisfiable core [2022-03-20 07:34:58,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:34:58,229 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:34:58,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:34:58,334 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 07:34:58,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:34:58,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 07:34:58,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 07:34:58,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 07:34:58,518 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-20 07:34:58,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-03-20 07:34:58,551 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 07:34:58,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 07:34:58,695 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:34:58,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:34:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 301 proven. 54 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-03-20 07:34:58,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:34:59,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 52 [2022-03-20 07:34:59,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-03-20 07:35:00,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2022-03-20 07:35:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-20 07:35:00,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791825262] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:00,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:35:00,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 20 [2022-03-20 07:35:00,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630816064] [2022-03-20 07:35:00,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:00,924 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:35:00,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:00,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:35:00,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-03-20 07:35:00,925 INFO L87 Difference]: Start difference. First operand 1581 states and 2183 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:02,932 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 [] [2022-03-20 07:35:04,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:06,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 07:35:09,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:09,583 INFO L93 Difference]: Finished difference Result 2376 states and 3262 transitions. [2022-03-20 07:35:09,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 07:35:09,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-20 07:35:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:09,587 INFO L225 Difference]: With dead ends: 2376 [2022-03-20 07:35:09,587 INFO L226 Difference]: Without dead ends: 2376 [2022-03-20 07:35:09,587 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2022-03-20 07:35:09,588 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 221 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 192 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:09,588 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 996 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 625 Invalid, 3 Unknown, 192 Unchecked, 6.6s Time] [2022-03-20 07:35:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2022-03-20 07:35:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 2153. [2022-03-20 07:35:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2148 states have (on average 1.3803538175046555) internal successors, (2965), 2148 states have internal predecessors, (2965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:09,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2969 transitions. [2022-03-20 07:35:09,605 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2969 transitions. Word has length 239 [2022-03-20 07:35:09,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:09,606 INFO L478 AbstractCegarLoop]: Abstraction has 2153 states and 2969 transitions. [2022-03-20 07:35:09,606 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:09,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2969 transitions. [2022-03-20 07:35:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-03-20 07:35:09,609 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:09,609 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:09,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-20 07:35:09,823 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-03-20 07:35:09,824 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:09,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:09,824 INFO L85 PathProgramCache]: Analyzing trace with hash -875202459, now seen corresponding path program 1 times [2022-03-20 07:35:09,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:09,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068637816] [2022-03-20 07:35:09,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:09,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:10,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 262 proven. 36 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-20 07:35:10,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:10,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068637816] [2022-03-20 07:35:10,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068637816] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:10,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882349737] [2022-03-20 07:35:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:10,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:35:10,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:35:10,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:35:10,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-20 07:35:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:10,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-20 07:35:10,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:35:10,966 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:35:10,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:35:11,011 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:35:11,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:35:11,085 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-20 07:35:11,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 07:35:11,204 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:35:11,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-03-20 07:35:11,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-20 07:35:11,348 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 257 proven. 100 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-03-20 07:35:11,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:35:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-03-20 07:35:11,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882349737] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:11,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:35:11,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-20 07:35:11,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689718565] [2022-03-20 07:35:11,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:11,625 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 07:35:11,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:11,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 07:35:11,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-20 07:35:11,626 INFO L87 Difference]: Start difference. First operand 2153 states and 2969 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:13,631 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 [] [2022-03-20 07:35:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:13,891 INFO L93 Difference]: Finished difference Result 2392 states and 3291 transitions. [2022-03-20 07:35:13,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 07:35:13,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2022-03-20 07:35:13,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:13,894 INFO L225 Difference]: With dead ends: 2392 [2022-03-20 07:35:13,895 INFO L226 Difference]: Without dead ends: 2392 [2022-03-20 07:35:13,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-20 07:35:13,895 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 37 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:13,895 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 515 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 246 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-20 07:35:13,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2022-03-20 07:35:13,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2153. [2022-03-20 07:35:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2148 states have (on average 1.378026070763501) internal successors, (2960), 2148 states have internal predecessors, (2960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2964 transitions. [2022-03-20 07:35:13,912 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2964 transitions. Word has length 239 [2022-03-20 07:35:13,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:13,912 INFO L478 AbstractCegarLoop]: Abstraction has 2153 states and 2964 transitions. [2022-03-20 07:35:13,912 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2964 transitions. [2022-03-20 07:35:13,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 07:35:13,915 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:13,915 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:13,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-20 07:35:14,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2022-03-20 07:35:14,138 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:14,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1893567372, now seen corresponding path program 1 times [2022-03-20 07:35:14,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:14,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938075882] [2022-03-20 07:35:14,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:14,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:14,369 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-20 07:35:14,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:14,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938075882] [2022-03-20 07:35:14,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938075882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:14,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:14,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 07:35:14,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193030760] [2022-03-20 07:35:14,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:14,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 07:35:14,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 07:35:14,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:14,370 INFO L87 Difference]: Start difference. First operand 2153 states and 2964 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:16,386 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 [] [2022-03-20 07:35:17,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:17,123 INFO L93 Difference]: Finished difference Result 2580 states and 3531 transitions. [2022-03-20 07:35:17,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:35:17,124 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 07:35:17,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:17,129 INFO L225 Difference]: With dead ends: 2580 [2022-03-20 07:35:17,129 INFO L226 Difference]: Without dead ends: 2580 [2022-03-20 07:35:17,129 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-20 07:35:17,131 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 277 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:17,131 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 750 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 762 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-03-20 07:35:17,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-03-20 07:35:17,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2156. [2022-03-20 07:35:17,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 2151 states have (on average 1.3737796373779638) internal successors, (2955), 2151 states have internal predecessors, (2955), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:17,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 2959 transitions. [2022-03-20 07:35:17,150 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 2959 transitions. Word has length 240 [2022-03-20 07:35:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:17,150 INFO L478 AbstractCegarLoop]: Abstraction has 2156 states and 2959 transitions. [2022-03-20 07:35:17,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 2959 transitions. [2022-03-20 07:35:17,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 07:35:17,153 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:17,153 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:35:17,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-20 07:35:17,153 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:17,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:17,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1148700173, now seen corresponding path program 1 times [2022-03-20 07:35:17,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:17,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293344807] [2022-03-20 07:35:17,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:17,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-03-20 07:35:17,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:17,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293344807] [2022-03-20 07:35:17,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293344807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:17,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:17,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:17,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350160926] [2022-03-20 07:35:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:17,308 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:17,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:17,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:17,309 INFO L87 Difference]: Start difference. First operand 2156 states and 2959 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:19,320 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 [] [2022-03-20 07:35:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:19,634 INFO L93 Difference]: Finished difference Result 2288 states and 3129 transitions. [2022-03-20 07:35:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:19,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 07:35:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:19,638 INFO L225 Difference]: With dead ends: 2288 [2022-03-20 07:35:19,638 INFO L226 Difference]: Without dead ends: 2288 [2022-03-20 07:35:19,638 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:19,638 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:19,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 547 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:35:19,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-03-20 07:35:19,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2252. [2022-03-20 07:35:19,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2247 states have (on average 1.3702714730752115) internal successors, (3079), 2247 states have internal predecessors, (3079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3083 transitions. [2022-03-20 07:35:19,667 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3083 transitions. Word has length 240 [2022-03-20 07:35:19,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:19,667 INFO L478 AbstractCegarLoop]: Abstraction has 2252 states and 3083 transitions. [2022-03-20 07:35:19,667 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:19,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3083 transitions. [2022-03-20 07:35:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-20 07:35:19,669 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:19,670 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:19,670 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-20 07:35:19,670 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:19,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash 906984683, now seen corresponding path program 1 times [2022-03-20 07:35:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:19,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114271287] [2022-03-20 07:35:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:19,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:19,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 323 proven. 55 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:35:19,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:19,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114271287] [2022-03-20 07:35:19,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114271287] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:19,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111436807] [2022-03-20 07:35:19,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:19,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:35:19,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:35:19,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:35:19,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-20 07:35:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:20,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 30 conjunts are in the unsatisfiable core [2022-03-20 07:35:20,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:35:20,893 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-20 07:35:20,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-20 07:35:20,971 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-20 07:35:20,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:35:21,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-03-20 07:35:21,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-20 07:35:21,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-20 07:35:21,114 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-20 07:35:21,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 54 [2022-03-20 07:35:21,142 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-20 07:35:21,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-03-20 07:35:21,293 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-20 07:35:21,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2022-03-20 07:35:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 305 proven. 54 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-03-20 07:35:21,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-20 07:35:21,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 52 [2022-03-20 07:35:21,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2022-03-20 07:35:23,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 168 [2022-03-20 07:35:23,796 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2022-03-20 07:35:23,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111436807] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:23,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-20 07:35:23,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 10] total 20 [2022-03-20 07:35:23,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392487208] [2022-03-20 07:35:23,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:23,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:35:23,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:23,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:35:23,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2022-03-20 07:35:23,798 INFO L87 Difference]: Start difference. First operand 2252 states and 3083 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:25,806 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 [] [2022-03-20 07:35:27,827 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 [] [2022-03-20 07:35:30,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:30,329 INFO L93 Difference]: Finished difference Result 3712 states and 5060 transitions. [2022-03-20 07:35:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 07:35:30,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-20 07:35:30,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:30,333 INFO L225 Difference]: With dead ends: 3712 [2022-03-20 07:35:30,333 INFO L226 Difference]: Without dead ends: 3712 [2022-03-20 07:35:30,333 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-03-20 07:35:30,334 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 320 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 84 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:30,334 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 813 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 493 Invalid, 2 Unknown, 182 Unchecked, 4.5s Time] [2022-03-20 07:35:30,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2022-03-20 07:35:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 2252. [2022-03-20 07:35:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 2247 states have (on average 1.3702714730752115) internal successors, (3079), 2247 states have internal predecessors, (3079), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3083 transitions. [2022-03-20 07:35:30,356 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3083 transitions. Word has length 240 [2022-03-20 07:35:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:30,356 INFO L478 AbstractCegarLoop]: Abstraction has 2252 states and 3083 transitions. [2022-03-20 07:35:30,356 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3083 transitions. [2022-03-20 07:35:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-03-20 07:35:30,359 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:30,359 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-03-20 07:35:30,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-20 07:35:30,575 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:35:30,576 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:30,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:30,576 INFO L85 PathProgramCache]: Analyzing trace with hash 609844275, now seen corresponding path program 1 times [2022-03-20 07:35:30,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:30,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465460222] [2022-03-20 07:35:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:30,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-03-20 07:35:30,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:30,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465460222] [2022-03-20 07:35:30,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465460222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:30,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:30,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 07:35:30,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826583953] [2022-03-20 07:35:30,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:30,709 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 07:35:30,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:30,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 07:35:30,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-20 07:35:30,709 INFO L87 Difference]: Start difference. First operand 2252 states and 3083 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:32,717 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 [] [2022-03-20 07:35:33,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:33,068 INFO L93 Difference]: Finished difference Result 2425 states and 3313 transitions. [2022-03-20 07:35:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-20 07:35:33,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 262 [2022-03-20 07:35:33,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:33,071 INFO L225 Difference]: With dead ends: 2425 [2022-03-20 07:35:33,071 INFO L226 Difference]: Without dead ends: 2425 [2022-03-20 07:35:33,071 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 07:35:33,071 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 25 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:33,071 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 551 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-20 07:35:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-03-20 07:35:33,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2382. [2022-03-20 07:35:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.3689524610854018) internal successors, (3254), 2377 states have internal predecessors, (3254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:33,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3258 transitions. [2022-03-20 07:35:33,089 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3258 transitions. Word has length 262 [2022-03-20 07:35:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:33,089 INFO L478 AbstractCegarLoop]: Abstraction has 2382 states and 3258 transitions. [2022-03-20 07:35:33,089 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:33,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3258 transitions. [2022-03-20 07:35:33,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 07:35:33,092 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:33,092 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:33,092 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-20 07:35:33,092 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash 259054701, now seen corresponding path program 1 times [2022-03-20 07:35:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:33,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666390440] [2022-03-20 07:35:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:33,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:33,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:33,383 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2022-03-20 07:35:33,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:33,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666390440] [2022-03-20 07:35:33,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666390440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 07:35:33,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 07:35:33,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-20 07:35:33,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206466561] [2022-03-20 07:35:33,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 07:35:33,384 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-20 07:35:33,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 07:35:33,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-20 07:35:33,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-20 07:35:33,385 INFO L87 Difference]: Start difference. First operand 2382 states and 3258 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-03-20 07:35:35,394 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 [] [2022-03-20 07:35:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 07:35:35,822 INFO L93 Difference]: Finished difference Result 2390 states and 3268 transitions. [2022-03-20 07:35:35,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-20 07:35:35,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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 268 [2022-03-20 07:35:35,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 07:35:35,825 INFO L225 Difference]: With dead ends: 2390 [2022-03-20 07:35:35,825 INFO L226 Difference]: Without dead ends: 2382 [2022-03-20 07:35:35,825 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 07:35:35,829 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-20 07:35:35,829 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-20 07:35:35,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2382 states. [2022-03-20 07:35:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382. [2022-03-20 07:35:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2377 states have (on average 1.3685317627261253) internal successors, (3253), 2377 states have internal predecessors, (3253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-20 07:35:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3257 transitions. [2022-03-20 07:35:35,847 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3257 transitions. Word has length 268 [2022-03-20 07:35:35,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 07:35:35,848 INFO L478 AbstractCegarLoop]: Abstraction has 2382 states and 3257 transitions. [2022-03-20 07:35:35,848 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-03-20 07:35:35,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3257 transitions. [2022-03-20 07:35:35,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-03-20 07:35:35,850 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 07:35:35,851 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 07:35:35,851 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-20 07:35:35,851 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 07:35:35,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 07:35:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash 743691532, now seen corresponding path program 1 times [2022-03-20 07:35:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 07:35:35,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016173924] [2022-03-20 07:35:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 07:35:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 07:35:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 302 proven. 225 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-03-20 07:35:37,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 07:35:37,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016173924] [2022-03-20 07:35:37,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016173924] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 07:35:37,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035186727] [2022-03-20 07:35:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 07:35:37,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 07:35:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 07:35:37,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 07:35:37,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-20 07:35:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 07:35:38,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 210 conjunts are in the unsatisfiable core [2022-03-20 07:35:38,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 07:35:40,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-20 07:36:30,188 INFO L190 IndexEqualityManager]: detected not equals via solver