/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 08:54:27,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 08:54:27,807 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 08:54:27,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-06 08:54:27,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-06 08:54:27,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-06 08:54:27,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-06 08:54:27,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-06 08:54:27,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-06 08:54:27,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-06 08:54:27,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-06 08:54:27,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-06 08:54:27,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-06 08:54:27,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-06 08:54:27,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-06 08:54:27,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-06 08:54:27,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-06 08:54:27,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-06 08:54:27,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-06 08:54:27,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-06 08:54:27,849 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-06 08:54:27,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-06 08:54:27,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-06 08:54:27,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-06 08:54:27,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-06 08:54:27,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-06 08:54:27,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-06 08:54:27,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-06 08:54:27,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-06 08:54:27,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-06 08:54:27,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-06 08:54:27,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-06 08:54:27,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-06 08:54:27,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-06 08:54:27,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-06 08:54:27,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-06 08:54:27,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-06 08:54:27,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-06 08:54:27,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-06 08:54:27,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 08:54:27,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 08:54:27,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 08:54:27,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-06 08:54:27,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 08:54:27,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 08:54:27,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 08:54:27,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 08:54:27,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 08:54:27,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 08:54:27,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 08:54:27,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 08:54:27,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 08:54:27,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 08:54:27,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 08:54:27,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 08:54:27,891 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 08:54:27,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 08:54:27,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 08:54:27,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 08:54:27,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 08:54:27,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 08:54:27,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:54:27,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 08:54:27,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-06 08:54:27,893 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-06 08:54:27,894 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 08:54:28,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 08:54:28,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 08:54:28,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 08:54:28,149 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 08:54:28,150 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 08:54:28,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-04-06 08:54:28,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f584f8f0/88c3011c10804fd285cae7be9a74924a/FLAG740dad0bf [2022-04-06 08:54:28,732 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 08:54:28,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c [2022-04-06 08:54:28,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f584f8f0/88c3011c10804fd285cae7be9a74924a/FLAG740dad0bf [2022-04-06 08:54:29,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f584f8f0/88c3011c10804fd285cae7be9a74924a [2022-04-06 08:54:29,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 08:54:29,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-06 08:54:29,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 08:54:29,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 08:54:29,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 08:54:29,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d4021d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29, skipping insertion in model container [2022-04-06 08:54:29,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 08:54:29,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 08:54:29,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c[75550,75563] [2022-04-06 08:54:29,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:54:29,679 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 08:54:29,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.15.i.cil-1.c[75550,75563] [2022-04-06 08:54:29,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 08:54:29,844 INFO L208 MainTranslator]: Completed translation [2022-04-06 08:54:29,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29 WrapperNode [2022-04-06 08:54:29,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 08:54:29,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 08:54:29,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 08:54:29,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 08:54:29,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 08:54:29,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 08:54:29,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 08:54:29,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 08:54:29,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (1/1) ... [2022-04-06 08:54:29,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 08:54:30,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:54:30,021 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-06 08:54:30,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-06 08:54:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 08:54:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 08:54:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 08:54:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-06 08:54:30,077 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-06 08:54:30,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 08:54:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-06 08:54:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-06 08:54:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-06 08:54:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-06 08:54:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 08:54:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 08:54:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-06 08:54:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-06 08:54:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-06 08:54:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-06 08:54:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-06 08:54:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-06 08:54:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 08:54:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-06 08:54:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-06 08:54:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 08:54:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 08:54:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 08:54:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-06 08:54:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-06 08:54:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-06 08:54:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-06 08:54:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 08:54:30,221 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 08:54:30,222 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 08:54:30,981 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-06 08:54:31,456 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-06 08:54:31,457 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-06 08:54:31,469 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 08:54:31,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 08:54:31,480 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-06 08:54:31,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:54:31 BoogieIcfgContainer [2022-04-06 08:54:31,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 08:54:31,482 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-06 08:54:31,483 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-06 08:54:31,483 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-06 08:54:31,485 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:54:31" (1/1) ... [2022-04-06 08:54:31,487 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-06 08:54:31,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:54:31 BasicIcfg [2022-04-06 08:54:31,528 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-06 08:54:31,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 08:54:31,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 08:54:31,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 08:54:31,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 08:54:29" (1/4) ... [2022-04-06 08:54:31,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee5f40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:54:31, skipping insertion in model container [2022-04-06 08:54:31,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 08:54:29" (2/4) ... [2022-04-06 08:54:31,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee5f40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 08:54:31, skipping insertion in model container [2022-04-06 08:54:31,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 08:54:31" (3/4) ... [2022-04-06 08:54:31,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee5f40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 08:54:31, skipping insertion in model container [2022-04-06 08:54:31,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 06.04 08:54:31" (4/4) ... [2022-04-06 08:54:31,535 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.15.i.cil-1.cJordan [2022-04-06 08:54:31,539 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-06 08:54:31,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 08:54:31,591 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 08:54:31,597 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-06 08:54:31,598 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 08:54:31,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-06 08:54:31,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-06 08:54:31,647 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:31,648 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] [2022-04-06 08:54:31,648 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:31,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:31,653 INFO L85 PathProgramCache]: Analyzing trace with hash 588345913, now seen corresponding path program 1 times [2022-04-06 08:54:31,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:31,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115662057] [2022-04-06 08:54:31,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:31,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:32,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:32,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115662057] [2022-04-06 08:54:32,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115662057] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:32,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:32,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:32,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768043452] [2022-04-06 08:54:32,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:32,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:32,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:32,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:32,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:32,250 INFO L87 Difference]: Start difference. First operand has 161 states, 153 states have (on average 1.7124183006535947) internal successors, (262), 154 states have internal predecessors, (262), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:34,968 INFO L93 Difference]: Finished difference Result 291 states and 485 transitions. [2022-04-06 08:54:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:34,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-06 08:54:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:34,981 INFO L225 Difference]: With dead ends: 291 [2022-04-06 08:54:34,981 INFO L226 Difference]: Without dead ends: 265 [2022-04-06 08:54:34,982 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:34,985 INFO L913 BasicCegarLoop]: 164 mSDtfsCounter, 156 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:34,986 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 481 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 08:54:35,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-04-06 08:54:35,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 185. [2022-04-06 08:54:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 180 states have (on average 1.6111111111111112) internal successors, (290), 180 states have internal predecessors, (290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 294 transitions. [2022-04-06 08:54:35,028 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 294 transitions. Word has length 50 [2022-04-06 08:54:35,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:35,029 INFO L478 AbstractCegarLoop]: Abstraction has 185 states and 294 transitions. [2022-04-06 08:54:35,029 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 294 transitions. [2022-04-06 08:54:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-06 08:54:35,031 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:35,031 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] [2022-04-06 08:54:35,031 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 08:54:35,032 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1971108142, now seen corresponding path program 1 times [2022-04-06 08:54:35,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:35,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075750648] [2022-04-06 08:54:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:35,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:35,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:35,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:35,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075750648] [2022-04-06 08:54:35,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075750648] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:35,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:35,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:35,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267947730] [2022-04-06 08:54:35,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:35,220 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:35,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:35,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:35,226 INFO L87 Difference]: Start difference. First operand 185 states and 294 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:38,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:38,886 INFO L93 Difference]: Finished difference Result 213 states and 334 transitions. [2022-04-06 08:54:38,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:38,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-06 08:54:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:38,888 INFO L225 Difference]: With dead ends: 213 [2022-04-06 08:54:38,888 INFO L226 Difference]: Without dead ends: 213 [2022-04-06 08:54:38,889 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:38,890 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 22 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:38,890 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 499 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:54:38,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-04-06 08:54:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-04-06 08:54:38,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.617801047120419) internal successors, (309), 191 states have internal predecessors, (309), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:38,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 313 transitions. [2022-04-06 08:54:38,902 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 313 transitions. Word has length 51 [2022-04-06 08:54:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:38,902 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 313 transitions. [2022-04-06 08:54:38,903 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 313 transitions. [2022-04-06 08:54:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-06 08:54:38,905 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:38,905 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] [2022-04-06 08:54:38,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-06 08:54:38,905 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:38,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:38,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1308484506, now seen corresponding path program 1 times [2022-04-06 08:54:38,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:38,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351852056] [2022-04-06 08:54:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:38,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:39,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:39,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351852056] [2022-04-06 08:54:39,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351852056] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:39,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:39,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:39,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093479425] [2022-04-06 08:54:39,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:39,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:39,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:39,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:39,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:39,111 INFO L87 Difference]: Start difference. First operand 196 states and 313 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:41,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:41,437 INFO L93 Difference]: Finished difference Result 213 states and 333 transitions. [2022-04-06 08:54:41,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-06 08:54:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:41,438 INFO L225 Difference]: With dead ends: 213 [2022-04-06 08:54:41,439 INFO L226 Difference]: Without dead ends: 213 [2022-04-06 08:54:41,439 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:41,440 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 24 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:41,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 501 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:54:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-04-06 08:54:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 196. [2022-04-06 08:54:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.612565445026178) internal successors, (308), 191 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 312 transitions. [2022-04-06 08:54:41,460 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 312 transitions. Word has length 64 [2022-04-06 08:54:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:41,460 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 312 transitions. [2022-04-06 08:54:41,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 312 transitions. [2022-04-06 08:54:41,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:54:41,462 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:41,462 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] [2022-04-06 08:54:41,462 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-06 08:54:41,463 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:41,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:41,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1918189260, now seen corresponding path program 1 times [2022-04-06 08:54:41,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:41,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139805394] [2022-04-06 08:54:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:41,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:41,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:41,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:41,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139805394] [2022-04-06 08:54:41,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139805394] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:41,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:41,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:41,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343469470] [2022-04-06 08:54:41,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:41,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:41,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:41,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:41,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:41,647 INFO L87 Difference]: Start difference. First operand 196 states and 312 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:43,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:43,904 INFO L93 Difference]: Finished difference Result 212 states and 331 transitions. [2022-04-06 08:54:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:43,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:54:43,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:43,906 INFO L225 Difference]: With dead ends: 212 [2022-04-06 08:54:43,906 INFO L226 Difference]: Without dead ends: 212 [2022-04-06 08:54:43,907 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:43,907 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 28 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:43,908 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:54:43,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-04-06 08:54:43,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 196. [2022-04-06 08:54:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.6073298429319371) internal successors, (307), 191 states have internal predecessors, (307), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 311 transitions. [2022-04-06 08:54:43,916 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 311 transitions. Word has length 65 [2022-04-06 08:54:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:43,916 INFO L478 AbstractCegarLoop]: Abstraction has 196 states and 311 transitions. [2022-04-06 08:54:43,917 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 311 transitions. [2022-04-06 08:54:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:54:43,918 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:43,918 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] [2022-04-06 08:54:43,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-06 08:54:43,919 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:43,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:43,919 INFO L85 PathProgramCache]: Analyzing trace with hash -956367596, now seen corresponding path program 1 times [2022-04-06 08:54:43,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:43,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254389465] [2022-04-06 08:54:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:43,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:44,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:44,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:44,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254389465] [2022-04-06 08:54:44,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254389465] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:44,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:44,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:44,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180328101] [2022-04-06 08:54:44,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:44,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:44,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:44,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:44,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:44,064 INFO L87 Difference]: Start difference. First operand 196 states and 311 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:46,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:46,963 INFO L93 Difference]: Finished difference Result 315 states and 494 transitions. [2022-04-06 08:54:46,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:46,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:54:46,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:46,966 INFO L225 Difference]: With dead ends: 315 [2022-04-06 08:54:46,966 INFO L226 Difference]: Without dead ends: 315 [2022-04-06 08:54:46,966 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:46,967 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 151 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:46,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 362 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:54:46,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-04-06 08:54:46,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 208. [2022-04-06 08:54:46,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5911330049261083) internal successors, (323), 203 states have internal predecessors, (323), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:46,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 327 transitions. [2022-04-06 08:54:46,975 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 327 transitions. Word has length 65 [2022-04-06 08:54:46,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:46,975 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 327 transitions. [2022-04-06 08:54:46,975 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:46,975 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 327 transitions. [2022-04-06 08:54:46,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:54:46,976 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:46,976 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] [2022-04-06 08:54:46,977 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-06 08:54:46,977 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:46,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:46,977 INFO L85 PathProgramCache]: Analyzing trace with hash 631343316, now seen corresponding path program 1 times [2022-04-06 08:54:46,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:46,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821312989] [2022-04-06 08:54:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:46,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:47,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:47,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:47,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821312989] [2022-04-06 08:54:47,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821312989] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:47,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:47,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:47,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510450318] [2022-04-06 08:54:47,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:47,113 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:47,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:47,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:47,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:47,114 INFO L87 Difference]: Start difference. First operand 208 states and 327 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:48,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:49,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:51,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:54:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:52,051 INFO L93 Difference]: Finished difference Result 222 states and 344 transitions. [2022-04-06 08:54:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:52,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:54:52,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:52,053 INFO L225 Difference]: With dead ends: 222 [2022-04-06 08:54:52,054 INFO L226 Difference]: Without dead ends: 222 [2022-04-06 08:54:52,054 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 [2022-04-06 08:54:52,054 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:52,055 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 507 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:54:52,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-04-06 08:54:52,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 208. [2022-04-06 08:54:52,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.5862068965517242) internal successors, (322), 203 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:52,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 326 transitions. [2022-04-06 08:54:52,060 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 326 transitions. Word has length 65 [2022-04-06 08:54:52,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:52,060 INFO L478 AbstractCegarLoop]: Abstraction has 208 states and 326 transitions. [2022-04-06 08:54:52,061 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:52,061 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 326 transitions. [2022-04-06 08:54:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-06 08:54:52,062 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:52,062 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] [2022-04-06 08:54:52,062 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-06 08:54:52,062 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1301074508, now seen corresponding path program 1 times [2022-04-06 08:54:52,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:52,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864109993] [2022-04-06 08:54:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:52,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:52,202 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:52,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:52,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864109993] [2022-04-06 08:54:52,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864109993] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:52,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:52,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:52,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272121925] [2022-04-06 08:54:52,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:52,203 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:52,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:52,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:52,204 INFO L87 Difference]: Start difference. First operand 208 states and 326 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:55,101 INFO L93 Difference]: Finished difference Result 314 states and 489 transitions. [2022-04-06 08:54:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:55,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-06 08:54:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:55,103 INFO L225 Difference]: With dead ends: 314 [2022-04-06 08:54:55,103 INFO L226 Difference]: Without dead ends: 314 [2022-04-06 08:54:55,104 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:55,104 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 144 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:55,105 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:54:55,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-06 08:54:55,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-04-06 08:54:55,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5837320574162679) internal successors, (331), 209 states have internal predecessors, (331), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 335 transitions. [2022-04-06 08:54:55,115 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 335 transitions. Word has length 65 [2022-04-06 08:54:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:55,115 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 335 transitions. [2022-04-06 08:54:55,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:55,115 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 335 transitions. [2022-04-06 08:54:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-06 08:54:55,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:55,116 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] [2022-04-06 08:54:55,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-06 08:54:55,117 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:55,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:55,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1470127014, now seen corresponding path program 1 times [2022-04-06 08:54:55,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:55,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280329099] [2022-04-06 08:54:55,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:55,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:55,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:55,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:55,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280329099] [2022-04-06 08:54:55,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280329099] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:55,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:55,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:55,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989085241] [2022-04-06 08:54:55,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:55,228 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:55,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:55,229 INFO L87 Difference]: Start difference. First operand 214 states and 335 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:58,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:54:58,481 INFO L93 Difference]: Finished difference Result 227 states and 351 transitions. [2022-04-06 08:54:58,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:54:58,481 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 [2022-04-06 08:54:58,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:54:58,482 INFO L225 Difference]: With dead ends: 227 [2022-04-06 08:54:58,482 INFO L226 Difference]: Without dead ends: 227 [2022-04-06 08:54:58,483 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:54:58,483 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 22 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:54:58,484 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 509 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 08:54:58,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-04-06 08:54:58,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 214. [2022-04-06 08:54:58,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5789473684210527) internal successors, (330), 209 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:54:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 334 transitions. [2022-04-06 08:54:58,489 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 334 transitions. Word has length 66 [2022-04-06 08:54:58,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:54:58,489 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 334 transitions. [2022-04-06 08:54:58,490 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) [2022-04-06 08:54:58,490 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 334 transitions. [2022-04-06 08:54:58,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-06 08:54:58,490 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:54:58,491 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] [2022-04-06 08:54:58,491 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-06 08:54:58,491 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:54:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:54:58,491 INFO L85 PathProgramCache]: Analyzing trace with hash -633442992, now seen corresponding path program 1 times [2022-04-06 08:54:58,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:54:58,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78116658] [2022-04-06 08:54:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:54:58,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:54:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:58,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:54:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:54:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:54:58,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:54:58,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78116658] [2022-04-06 08:54:58,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78116658] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:54:58,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:54:58,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:54:58,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086503302] [2022-04-06 08:54:58,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:54:58,619 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:54:58,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:54:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:54:58,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:54:58,620 INFO L87 Difference]: Start difference. First operand 214 states and 334 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:00,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:01,225 INFO L93 Difference]: Finished difference Result 314 states and 485 transitions. [2022-04-06 08:55:01,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:01,225 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 [2022-04-06 08:55:01,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:01,227 INFO L225 Difference]: With dead ends: 314 [2022-04-06 08:55:01,227 INFO L226 Difference]: Without dead ends: 314 [2022-04-06 08:55:01,227 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:01,228 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 147 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:01,228 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 364 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 08:55:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-06 08:55:01,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-04-06 08:55:01,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5645933014354068) internal successors, (327), 209 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 331 transitions. [2022-04-06 08:55:01,234 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 331 transitions. Word has length 67 [2022-04-06 08:55:01,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:01,234 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 331 transitions. [2022-04-06 08:55:01,234 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) [2022-04-06 08:55:01,234 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 331 transitions. [2022-04-06 08:55:01,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 08:55:01,235 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:01,235 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] [2022-04-06 08:55:01,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-06 08:55:01,236 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:01,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:01,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1852266313, now seen corresponding path program 1 times [2022-04-06 08:55:01,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:01,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098793259] [2022-04-06 08:55:01,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:01,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:01,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:55:01,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:01,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098793259] [2022-04-06 08:55:01,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098793259] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:01,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:01,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:01,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665418795] [2022-04-06 08:55:01,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:01,376 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:01,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:01,377 INFO L87 Difference]: Start difference. First operand 214 states and 331 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:02,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:04,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:05,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:07,987 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 [] [2022-04-06 08:55:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:08,528 INFO L93 Difference]: Finished difference Result 314 states and 482 transitions. [2022-04-06 08:55:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:08,529 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 [2022-04-06 08:55:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:08,531 INFO L225 Difference]: With dead ends: 314 [2022-04-06 08:55:08,531 INFO L226 Difference]: Without dead ends: 314 [2022-04-06 08:55:08,531 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:08,532 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:08,532 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-04-06 08:55:08,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-04-06 08:55:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 214. [2022-04-06 08:55:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 209 states have (on average 1.5502392344497609) internal successors, (324), 209 states have internal predecessors, (324), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 328 transitions. [2022-04-06 08:55:08,537 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 328 transitions. Word has length 68 [2022-04-06 08:55:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:08,538 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 328 transitions. [2022-04-06 08:55:08,538 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) [2022-04-06 08:55:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 328 transitions. [2022-04-06 08:55:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 08:55:08,539 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:08,539 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] [2022-04-06 08:55:08,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-06 08:55:08,539 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:08,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:08,540 INFO L85 PathProgramCache]: Analyzing trace with hash 416669672, now seen corresponding path program 1 times [2022-04-06 08:55:08,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:08,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234713208] [2022-04-06 08:55:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:08,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:55:08,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:08,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234713208] [2022-04-06 08:55:08,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234713208] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:08,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:08,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:08,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617177594] [2022-04-06 08:55:08,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:08,672 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:08,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:08,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:08,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:08,673 INFO L87 Difference]: Start difference. First operand 214 states and 328 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:10,155 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 [] [2022-04-06 08:55:12,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:13,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:14,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:14,042 INFO L93 Difference]: Finished difference Result 256 states and 388 transitions. [2022-04-06 08:55:14,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:14,043 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 [2022-04-06 08:55:14,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:14,044 INFO L225 Difference]: With dead ends: 256 [2022-04-06 08:55:14,044 INFO L226 Difference]: Without dead ends: 256 [2022-04-06 08:55:14,045 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:14,045 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 30 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:14,045 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 523 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 08:55:14,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-04-06 08:55:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 236. [2022-04-06 08:55:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 231 states have (on average 1.5497835497835497) internal successors, (358), 231 states have internal predecessors, (358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 362 transitions. [2022-04-06 08:55:14,050 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 362 transitions. Word has length 68 [2022-04-06 08:55:14,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:14,051 INFO L478 AbstractCegarLoop]: Abstraction has 236 states and 362 transitions. [2022-04-06 08:55:14,051 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) [2022-04-06 08:55:14,051 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 362 transitions. [2022-04-06 08:55:14,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-06 08:55:14,052 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:14,052 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] [2022-04-06 08:55:14,052 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-06 08:55:14,052 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:14,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:14,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1437140192, now seen corresponding path program 1 times [2022-04-06 08:55:14,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:14,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625062042] [2022-04-06 08:55:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:14,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:55:14,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:14,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625062042] [2022-04-06 08:55:14,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625062042] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:14,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:14,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:14,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053440046] [2022-04-06 08:55:14,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:14,162 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:14,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:14,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:14,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:14,163 INFO L87 Difference]: Start difference. First operand 236 states and 362 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:16,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:19,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:19,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:19,753 INFO L93 Difference]: Finished difference Result 375 states and 581 transitions. [2022-04-06 08:55:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:19,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-06 08:55:19,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:19,755 INFO L225 Difference]: With dead ends: 375 [2022-04-06 08:55:19,755 INFO L226 Difference]: Without dead ends: 375 [2022-04-06 08:55:19,755 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:19,755 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 144 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:19,756 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 604 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 603 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-06 08:55:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-04-06 08:55:19,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 252. [2022-04-06 08:55:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.534412955465587) internal successors, (379), 247 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 383 transitions. [2022-04-06 08:55:19,762 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 383 transitions. Word has length 81 [2022-04-06 08:55:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:19,762 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 383 transitions. [2022-04-06 08:55:19,762 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) [2022-04-06 08:55:19,762 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 383 transitions. [2022-04-06 08:55:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 08:55:19,764 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:19,764 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:19,764 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-06 08:55:19,764 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:19,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:19,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208978, now seen corresponding path program 1 times [2022-04-06 08:55:19,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:19,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75189786] [2022-04-06 08:55:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:19,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:19,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-06 08:55:19,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:19,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75189786] [2022-04-06 08:55:19,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75189786] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:19,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:19,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:19,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063820342] [2022-04-06 08:55:19,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:19,898 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:19,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:19,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:19,898 INFO L87 Difference]: Start difference. First operand 252 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:22,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:23,362 INFO L93 Difference]: Finished difference Result 265 states and 398 transitions. [2022-04-06 08:55:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:23,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-06 08:55:23,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:23,364 INFO L225 Difference]: With dead ends: 265 [2022-04-06 08:55:23,364 INFO L226 Difference]: Without dead ends: 265 [2022-04-06 08:55:23,364 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:23,365 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 19 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:23,365 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 590 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:55:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-04-06 08:55:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 252. [2022-04-06 08:55:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 382 transitions. [2022-04-06 08:55:23,371 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 382 transitions. Word has length 82 [2022-04-06 08:55:23,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:23,371 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 382 transitions. [2022-04-06 08:55:23,371 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 382 transitions. [2022-04-06 08:55:23,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-06 08:55:23,372 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:23,372 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:23,372 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-06 08:55:23,373 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:23,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:23,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1416323598, now seen corresponding path program 1 times [2022-04-06 08:55:23,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:23,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484001833] [2022-04-06 08:55:23,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:23,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:23,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:55:23,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:23,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484001833] [2022-04-06 08:55:23,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484001833] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:23,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:23,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:23,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892213525] [2022-04-06 08:55:23,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:23,499 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:23,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:23,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:23,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:23,500 INFO L87 Difference]: Start difference. First operand 252 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:24,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:26,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:28,213 INFO L93 Difference]: Finished difference Result 352 states and 533 transitions. [2022-04-06 08:55:28,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:28,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-04-06 08:55:28,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:28,215 INFO L225 Difference]: With dead ends: 352 [2022-04-06 08:55:28,215 INFO L226 Difference]: Without dead ends: 352 [2022-04-06 08:55:28,216 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:28,216 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 143 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:28,216 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 364 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:55:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-04-06 08:55:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 252. [2022-04-06 08:55:28,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:28,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 379 transitions. [2022-04-06 08:55:28,223 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 379 transitions. Word has length 82 [2022-04-06 08:55:28,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:28,223 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 379 transitions. [2022-04-06 08:55:28,223 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) [2022-04-06 08:55:28,224 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 379 transitions. [2022-04-06 08:55:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 08:55:28,224 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:28,225 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:28,225 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-06 08:55:28,225 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1457894331, now seen corresponding path program 1 times [2022-04-06 08:55:28,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:28,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817372462] [2022-04-06 08:55:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:28,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-06 08:55:28,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:28,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817372462] [2022-04-06 08:55:28,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817372462] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:28,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:28,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-06 08:55:28,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263834835] [2022-04-06 08:55:28,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:28,398 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-06 08:55:28,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:28,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-06 08:55:28,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:28,398 INFO L87 Difference]: Start difference. First operand 252 states and 379 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:29,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:31,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:33,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:34,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:34,632 INFO L93 Difference]: Finished difference Result 261 states and 390 transitions. [2022-04-06 08:55:34,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-06 08:55:34,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-06 08:55:34,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:34,634 INFO L225 Difference]: With dead ends: 261 [2022-04-06 08:55:34,634 INFO L226 Difference]: Without dead ends: 261 [2022-04-06 08:55:34,634 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:55:34,635 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 3 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:34,635 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 657 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 441 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-06 08:55:34,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-04-06 08:55:34,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2022-04-06 08:55:34,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.5078125) internal successors, (386), 256 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:34,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 390 transitions. [2022-04-06 08:55:34,641 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 390 transitions. Word has length 83 [2022-04-06 08:55:34,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:34,641 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 390 transitions. [2022-04-06 08:55:34,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:34,641 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 390 transitions. [2022-04-06 08:55:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-06 08:55:34,642 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:34,642 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:34,642 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-06 08:55:34,642 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:34,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:34,643 INFO L85 PathProgramCache]: Analyzing trace with hash -565644653, now seen corresponding path program 1 times [2022-04-06 08:55:34,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:34,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337058439] [2022-04-06 08:55:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:34,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 08:55:34,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:34,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337058439] [2022-04-06 08:55:34,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337058439] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:34,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:34,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:34,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410983363] [2022-04-06 08:55:34,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:34,751 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:34,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:34,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:34,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:34,752 INFO L87 Difference]: Start difference. First operand 261 states and 390 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:37,542 INFO L93 Difference]: Finished difference Result 360 states and 538 transitions. [2022-04-06 08:55:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:37,542 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 [2022-04-06 08:55:37,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:37,544 INFO L225 Difference]: With dead ends: 360 [2022-04-06 08:55:37,544 INFO L226 Difference]: Without dead ends: 360 [2022-04-06 08:55:37,544 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:37,545 INFO L913 BasicCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:37,545 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 366 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-04-06 08:55:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-06 08:55:37,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 261. [2022-04-06 08:55:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.4921875) internal successors, (382), 256 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 386 transitions. [2022-04-06 08:55:37,551 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 386 transitions. Word has length 84 [2022-04-06 08:55:37,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:37,551 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 386 transitions. [2022-04-06 08:55:37,551 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) [2022-04-06 08:55:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 386 transitions. [2022-04-06 08:55:37,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-06 08:55:37,552 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:37,552 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] [2022-04-06 08:55:37,552 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-06 08:55:37,553 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:37,553 INFO L85 PathProgramCache]: Analyzing trace with hash 681592199, now seen corresponding path program 1 times [2022-04-06 08:55:37,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:37,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971516002] [2022-04-06 08:55:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:37,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:37,694 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:55:37,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:37,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971516002] [2022-04-06 08:55:37,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971516002] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:37,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:37,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31146738] [2022-04-06 08:55:37,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:37,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:37,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:37,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:37,696 INFO L87 Difference]: Start difference. First operand 261 states and 386 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:39,886 INFO L93 Difference]: Finished difference Result 358 states and 530 transitions. [2022-04-06 08:55:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:39,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-04-06 08:55:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:39,892 INFO L225 Difference]: With dead ends: 358 [2022-04-06 08:55:39,892 INFO L226 Difference]: Without dead ends: 358 [2022-04-06 08:55:39,892 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:39,893 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 80 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:39,893 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 513 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 08:55:39,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-04-06 08:55:39,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 303. [2022-04-06 08:55:39,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 298 states have (on average 1.5100671140939597) internal successors, (450), 298 states have internal predecessors, (450), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:39,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 454 transitions. [2022-04-06 08:55:39,899 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 454 transitions. Word has length 90 [2022-04-06 08:55:39,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:39,900 INFO L478 AbstractCegarLoop]: Abstraction has 303 states and 454 transitions. [2022-04-06 08:55:39,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:39,900 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 454 transitions. [2022-04-06 08:55:39,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-04-06 08:55:39,901 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:39,901 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] [2022-04-06 08:55:39,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-06 08:55:39,901 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:39,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:39,902 INFO L85 PathProgramCache]: Analyzing trace with hash 805665446, now seen corresponding path program 1 times [2022-04-06 08:55:39,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:39,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443775484] [2022-04-06 08:55:39,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:39,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:40,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:55:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443775484] [2022-04-06 08:55:40,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443775484] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:40,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:40,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217063742] [2022-04-06 08:55:40,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:40,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:40,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:40,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:40,031 INFO L87 Difference]: Start difference. First operand 303 states and 454 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:41,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:44,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:44,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:44,450 INFO L93 Difference]: Finished difference Result 402 states and 605 transitions. [2022-04-06 08:55:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-04-06 08:55:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:44,452 INFO L225 Difference]: With dead ends: 402 [2022-04-06 08:55:44,452 INFO L226 Difference]: Without dead ends: 402 [2022-04-06 08:55:44,452 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:44,453 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 117 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:44,453 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 388 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-06 08:55:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-04-06 08:55:44,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 283. [2022-04-06 08:55:44,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5287769784172662) internal successors, (425), 278 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:44,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 429 transitions. [2022-04-06 08:55:44,459 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 429 transitions. Word has length 90 [2022-04-06 08:55:44,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:44,459 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 429 transitions. [2022-04-06 08:55:44,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:44,460 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 429 transitions. [2022-04-06 08:55:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 08:55:44,461 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:44,461 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] [2022-04-06 08:55:44,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-06 08:55:44,461 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:44,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1821101810, now seen corresponding path program 1 times [2022-04-06 08:55:44,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:44,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452608645] [2022-04-06 08:55:44,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:44,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:55:44,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:44,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452608645] [2022-04-06 08:55:44,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452608645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:44,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:44,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:44,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800641687] [2022-04-06 08:55:44,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:44,580 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:44,580 INFO L87 Difference]: Start difference. First operand 283 states and 429 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:45,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:48,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:48,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:48,503 INFO L93 Difference]: Finished difference Result 377 states and 568 transitions. [2022-04-06 08:55:48,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:48,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-06 08:55:48,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:48,505 INFO L225 Difference]: With dead ends: 377 [2022-04-06 08:55:48,505 INFO L226 Difference]: Without dead ends: 377 [2022-04-06 08:55:48,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:48,506 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:48,506 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 519 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:55:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-04-06 08:55:48,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 317. [2022-04-06 08:55:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.5320512820512822) internal successors, (478), 312 states have internal predecessors, (478), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:48,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 482 transitions. [2022-04-06 08:55:48,513 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 482 transitions. Word has length 118 [2022-04-06 08:55:48,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:48,513 INFO L478 AbstractCegarLoop]: Abstraction has 317 states and 482 transitions. [2022-04-06 08:55:48,513 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 482 transitions. [2022-04-06 08:55:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 08:55:48,514 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:48,514 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] [2022-04-06 08:55:48,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-06 08:55:48,515 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash -866872915, now seen corresponding path program 1 times [2022-04-06 08:55:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:48,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183375663] [2022-04-06 08:55:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:48,632 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-06 08:55:48,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:48,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183375663] [2022-04-06 08:55:48,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183375663] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:48,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:48,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:48,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621106427] [2022-04-06 08:55:48,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:48,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:48,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:48,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:48,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:48,633 INFO L87 Difference]: Start difference. First operand 317 states and 482 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:51,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:52,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:52,183 INFO L93 Difference]: Finished difference Result 362 states and 544 transitions. [2022-04-06 08:55:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:52,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-06 08:55:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:52,185 INFO L225 Difference]: With dead ends: 362 [2022-04-06 08:55:52,185 INFO L226 Difference]: Without dead ends: 362 [2022-04-06 08:55:52,185 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:52,186 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 32 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:52,186 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 613 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-04-06 08:55:52,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-06 08:55:52,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2022-04-06 08:55:52,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5267857142857142) internal successors, (513), 336 states have internal predecessors, (513), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 517 transitions. [2022-04-06 08:55:52,192 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 517 transitions. Word has length 118 [2022-04-06 08:55:52,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:52,193 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 517 transitions. [2022-04-06 08:55:52,193 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 517 transitions. [2022-04-06 08:55:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 08:55:52,194 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:52,194 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:52,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-06 08:55:52,195 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:52,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:52,195 INFO L85 PathProgramCache]: Analyzing trace with hash 590170977, now seen corresponding path program 1 times [2022-04-06 08:55:52,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:52,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975045727] [2022-04-06 08:55:52,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:52,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:52,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-06 08:55:52,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:52,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975045727] [2022-04-06 08:55:52,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975045727] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:52,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:52,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782597605] [2022-04-06 08:55:52,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:52,305 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:52,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:52,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:52,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:52,306 INFO L87 Difference]: Start difference. First operand 341 states and 517 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:54,586 INFO L93 Difference]: Finished difference Result 348 states and 526 transitions. [2022-04-06 08:55:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:54,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 08:55:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:54,588 INFO L225 Difference]: With dead ends: 348 [2022-04-06 08:55:54,588 INFO L226 Difference]: Without dead ends: 348 [2022-04-06 08:55:54,588 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:54,589 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 30 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:54,589 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 543 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:55:54,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-04-06 08:55:54,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 341. [2022-04-06 08:55:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 336 states have (on average 1.5238095238095237) internal successors, (512), 336 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:54,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 516 transitions. [2022-04-06 08:55:54,595 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 516 transitions. Word has length 123 [2022-04-06 08:55:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:54,595 INFO L478 AbstractCegarLoop]: Abstraction has 341 states and 516 transitions. [2022-04-06 08:55:54,595 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:54,595 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 516 transitions. [2022-04-06 08:55:54,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 08:55:54,597 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:54,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:54,597 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-06 08:55:54,597 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:54,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 52353177, now seen corresponding path program 1 times [2022-04-06 08:55:54,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:54,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505379756] [2022-04-06 08:55:54,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:54,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:54,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:54,749 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:55:54,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:54,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505379756] [2022-04-06 08:55:54,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505379756] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:54,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:54,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:54,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441002605] [2022-04-06 08:55:54,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:54,750 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:54,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:54,751 INFO L87 Difference]: Start difference. First operand 341 states and 516 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:56,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:58,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:55:58,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:55:58,682 INFO L93 Difference]: Finished difference Result 458 states and 688 transitions. [2022-04-06 08:55:58,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:55:58,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 08:55:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:55:58,686 INFO L225 Difference]: With dead ends: 458 [2022-04-06 08:55:58,686 INFO L226 Difference]: Without dead ends: 458 [2022-04-06 08:55:58,686 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:55:58,687 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:55:58,687 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 364 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:55:58,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-04-06 08:55:58,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 378. [2022-04-06 08:55:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 373 states have (on average 1.5335120643431635) internal successors, (572), 373 states have internal predecessors, (572), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:58,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 576 transitions. [2022-04-06 08:55:58,694 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 576 transitions. Word has length 123 [2022-04-06 08:55:58,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:55:58,694 INFO L478 AbstractCegarLoop]: Abstraction has 378 states and 576 transitions. [2022-04-06 08:55:58,694 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:55:58,694 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 576 transitions. [2022-04-06 08:55:58,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-06 08:55:58,695 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:55:58,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:55:58,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-06 08:55:58,695 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:55:58,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:55:58,696 INFO L85 PathProgramCache]: Analyzing trace with hash -857753857, now seen corresponding path program 1 times [2022-04-06 08:55:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:55:58,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659053434] [2022-04-06 08:55:58,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:55:58,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:55:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:58,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:55:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:55:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:55:58,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:55:58,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659053434] [2022-04-06 08:55:58,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659053434] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:55:58,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:55:58,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:55:58,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619974777] [2022-04-06 08:55:58,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:55:58,811 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:55:58,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:55:58,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:55:58,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:55:58,811 INFO L87 Difference]: Start difference. First operand 378 states and 576 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:01,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:02,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:02,883 INFO L93 Difference]: Finished difference Result 436 states and 658 transitions. [2022-04-06 08:56:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:02,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-06 08:56:02,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:02,885 INFO L225 Difference]: With dead ends: 436 [2022-04-06 08:56:02,885 INFO L226 Difference]: Without dead ends: 436 [2022-04-06 08:56:02,886 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:02,886 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:02,886 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 495 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-04-06 08:56:02,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-04-06 08:56:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 384. [2022-04-06 08:56:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 379 states have (on average 1.5356200527704484) internal successors, (582), 379 states have internal predecessors, (582), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 586 transitions. [2022-04-06 08:56:02,893 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 586 transitions. Word has length 124 [2022-04-06 08:56:02,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:02,893 INFO L478 AbstractCegarLoop]: Abstraction has 384 states and 586 transitions. [2022-04-06 08:56:02,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:02,893 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 586 transitions. [2022-04-06 08:56:02,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-06 08:56:02,894 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:02,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:02,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-06 08:56:02,895 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:02,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:02,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1073496446, now seen corresponding path program 1 times [2022-04-06 08:56:02,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:02,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590082417] [2022-04-06 08:56:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:02,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:03,041 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-06 08:56:03,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:03,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590082417] [2022-04-06 08:56:03,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590082417] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:03,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:03,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:03,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694435646] [2022-04-06 08:56:03,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:03,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:03,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:03,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:03,044 INFO L87 Difference]: Start difference. First operand 384 states and 586 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:04,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:04,998 INFO L93 Difference]: Finished difference Result 427 states and 642 transitions. [2022-04-06 08:56:04,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:04,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-06 08:56:04,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:05,000 INFO L225 Difference]: With dead ends: 427 [2022-04-06 08:56:05,000 INFO L226 Difference]: Without dead ends: 427 [2022-04-06 08:56:05,000 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:05,001 INFO L913 BasicCegarLoop]: 190 mSDtfsCounter, 59 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:05,001 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 501 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-04-06 08:56:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-04-06 08:56:05,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-04-06 08:56:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.531413612565445) internal successors, (585), 382 states have internal predecessors, (585), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 589 transitions. [2022-04-06 08:56:05,008 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 589 transitions. Word has length 132 [2022-04-06 08:56:05,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:05,008 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 589 transitions. [2022-04-06 08:56:05,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 589 transitions. [2022-04-06 08:56:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-06 08:56:05,009 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:05,009 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:05,009 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-06 08:56:05,009 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:05,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:05,010 INFO L85 PathProgramCache]: Analyzing trace with hash 641664460, now seen corresponding path program 1 times [2022-04-06 08:56:05,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:05,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020529855] [2022-04-06 08:56:05,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:05,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:56:05,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:05,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020529855] [2022-04-06 08:56:05,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020529855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:05,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:05,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:05,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562354223] [2022-04-06 08:56:05,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:05,125 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:05,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:05,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:05,126 INFO L87 Difference]: Start difference. First operand 387 states and 589 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:08,502 INFO L93 Difference]: Finished difference Result 427 states and 641 transitions. [2022-04-06 08:56:08,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:08,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-04-06 08:56:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:08,503 INFO L225 Difference]: With dead ends: 427 [2022-04-06 08:56:08,504 INFO L226 Difference]: Without dead ends: 427 [2022-04-06 08:56:08,504 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:08,504 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:08,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 513 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:56:08,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-04-06 08:56:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 387. [2022-04-06 08:56:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5287958115183247) internal successors, (584), 382 states have internal predecessors, (584), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:08,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 588 transitions. [2022-04-06 08:56:08,511 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 588 transitions. Word has length 140 [2022-04-06 08:56:08,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:08,511 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 588 transitions. [2022-04-06 08:56:08,511 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 588 transitions. [2022-04-06 08:56:08,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-04-06 08:56:08,512 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:08,513 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:08,513 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-06 08:56:08,513 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:08,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:08,513 INFO L85 PathProgramCache]: Analyzing trace with hash 627414315, now seen corresponding path program 1 times [2022-04-06 08:56:08,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:08,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40346389] [2022-04-06 08:56:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:08,680 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:56:08,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:08,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40346389] [2022-04-06 08:56:08,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40346389] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:08,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:08,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:08,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367162419] [2022-04-06 08:56:08,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:08,681 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:08,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:08,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:08,688 INFO L87 Difference]: Start difference. First operand 387 states and 588 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:10,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:12,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:13,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:13,984 INFO L93 Difference]: Finished difference Result 540 states and 819 transitions. [2022-04-06 08:56:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:13,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 140 [2022-04-06 08:56:13,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:13,987 INFO L225 Difference]: With dead ends: 540 [2022-04-06 08:56:13,987 INFO L226 Difference]: Without dead ends: 540 [2022-04-06 08:56:13,988 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:13,988 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 123 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:13,988 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 400 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-06 08:56:13,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-04-06 08:56:13,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 451. [2022-04-06 08:56:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5358744394618835) internal successors, (685), 446 states have internal predecessors, (685), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:13,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 689 transitions. [2022-04-06 08:56:13,996 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 689 transitions. Word has length 140 [2022-04-06 08:56:13,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:13,996 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 689 transitions. [2022-04-06 08:56:13,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:13,996 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 689 transitions. [2022-04-06 08:56:13,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:56:13,997 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:13,997 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:13,998 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-06 08:56:13,998 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:13,998 INFO L85 PathProgramCache]: Analyzing trace with hash -946684190, now seen corresponding path program 1 times [2022-04-06 08:56:13,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:13,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982307916] [2022-04-06 08:56:13,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:13,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-06 08:56:14,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:14,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982307916] [2022-04-06 08:56:14,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982307916] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:14,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:14,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:14,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649610654] [2022-04-06 08:56:14,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:14,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:14,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:14,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:14,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:14,113 INFO L87 Difference]: Start difference. First operand 451 states and 689 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:16,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:17,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:17,319 INFO L93 Difference]: Finished difference Result 518 states and 777 transitions. [2022-04-06 08:56:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:17,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 08:56:17,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:17,320 INFO L225 Difference]: With dead ends: 518 [2022-04-06 08:56:17,320 INFO L226 Difference]: Without dead ends: 518 [2022-04-06 08:56:17,321 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:17,321 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 139 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:17,321 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-04-06 08:56:17,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2022-04-06 08:56:17,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 451. [2022-04-06 08:56:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.5179372197309418) internal successors, (677), 446 states have internal predecessors, (677), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 681 transitions. [2022-04-06 08:56:17,328 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 681 transitions. Word has length 145 [2022-04-06 08:56:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:17,329 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 681 transitions. [2022-04-06 08:56:17,329 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 681 transitions. [2022-04-06 08:56:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-06 08:56:17,330 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:17,330 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:17,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-06 08:56:17,330 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:17,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:17,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1964442410, now seen corresponding path program 1 times [2022-04-06 08:56:17,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:17,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913314587] [2022-04-06 08:56:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:17,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:56:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:17,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913314587] [2022-04-06 08:56:17,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913314587] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:17,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:17,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:17,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966251975] [2022-04-06 08:56:17,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:17,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:17,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:17,472 INFO L87 Difference]: Start difference. First operand 451 states and 681 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:20,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:21,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:21,445 INFO L93 Difference]: Finished difference Result 558 states and 834 transitions. [2022-04-06 08:56:21,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:21,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-06 08:56:21,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:21,447 INFO L225 Difference]: With dead ends: 558 [2022-04-06 08:56:21,448 INFO L226 Difference]: Without dead ends: 558 [2022-04-06 08:56:21,448 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:21,448 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 119 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:21,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 408 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 08:56:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-04-06 08:56:21,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 481. [2022-04-06 08:56:21,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5084033613445378) internal successors, (718), 476 states have internal predecessors, (718), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:21,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 722 transitions. [2022-04-06 08:56:21,456 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 722 transitions. Word has length 145 [2022-04-06 08:56:21,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:21,456 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 722 transitions. [2022-04-06 08:56:21,456 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 722 transitions. [2022-04-06 08:56:21,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 08:56:21,457 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:21,458 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:21,458 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-06 08:56:21,458 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:21,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:21,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1579019717, now seen corresponding path program 1 times [2022-04-06 08:56:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:21,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320265937] [2022-04-06 08:56:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:56:21,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:21,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320265937] [2022-04-06 08:56:21,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320265937] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:21,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:21,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:21,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490169041] [2022-04-06 08:56:21,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:21,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:21,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:21,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:21,572 INFO L87 Difference]: Start difference. First operand 481 states and 722 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:23,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:23,844 INFO L93 Difference]: Finished difference Result 548 states and 812 transitions. [2022-04-06 08:56:23,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 08:56:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:23,846 INFO L225 Difference]: With dead ends: 548 [2022-04-06 08:56:23,846 INFO L226 Difference]: Without dead ends: 548 [2022-04-06 08:56:23,846 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:23,847 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:23,847 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 08:56:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-04-06 08:56:23,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-04-06 08:56:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.495798319327731) internal successors, (712), 476 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:23,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 716 transitions. [2022-04-06 08:56:23,855 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 716 transitions. Word has length 146 [2022-04-06 08:56:23,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:23,855 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 716 transitions. [2022-04-06 08:56:23,855 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) [2022-04-06 08:56:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 716 transitions. [2022-04-06 08:56:23,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-06 08:56:23,857 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:23,857 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:23,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-06 08:56:23,857 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1397412188, now seen corresponding path program 1 times [2022-04-06 08:56:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:23,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504861285] [2022-04-06 08:56:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:56:24,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:24,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504861285] [2022-04-06 08:56:24,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504861285] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:24,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:24,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:24,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078945024] [2022-04-06 08:56:24,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:24,046 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:24,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:24,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:24,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:24,047 INFO L87 Difference]: Start difference. First operand 481 states and 716 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:26,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:28,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:28,908 INFO L93 Difference]: Finished difference Result 548 states and 810 transitions. [2022-04-06 08:56:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-06 08:56:28,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:28,910 INFO L225 Difference]: With dead ends: 548 [2022-04-06 08:56:28,910 INFO L226 Difference]: Without dead ends: 548 [2022-04-06 08:56:28,910 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:28,910 INFO L913 BasicCegarLoop]: 147 mSDtfsCounter, 110 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:28,910 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 408 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-06 08:56:28,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-04-06 08:56:28,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-04-06 08:56:28,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4915966386554622) internal successors, (710), 476 states have internal predecessors, (710), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:28,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 714 transitions. [2022-04-06 08:56:28,918 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 714 transitions. Word has length 146 [2022-04-06 08:56:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:28,918 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 714 transitions. [2022-04-06 08:56:28,919 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:28,919 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 714 transitions. [2022-04-06 08:56:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 08:56:28,920 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:28,920 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:28,920 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-06 08:56:28,921 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:28,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1522661907, now seen corresponding path program 1 times [2022-04-06 08:56:28,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:28,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91248575] [2022-04-06 08:56:28,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:28,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:29,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:56:29,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:29,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91248575] [2022-04-06 08:56:29,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91248575] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:29,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:29,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:29,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066242894] [2022-04-06 08:56:29,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:29,040 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:29,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:29,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:29,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:29,041 INFO L87 Difference]: Start difference. First operand 481 states and 714 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:31,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:31,425 INFO L93 Difference]: Finished difference Result 509 states and 752 transitions. [2022-04-06 08:56:31,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 08:56:31,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:31,427 INFO L225 Difference]: With dead ends: 509 [2022-04-06 08:56:31,427 INFO L226 Difference]: Without dead ends: 509 [2022-04-06 08:56:31,427 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:31,427 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 60 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:31,430 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 529 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 08:56:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-04-06 08:56:31,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 481. [2022-04-06 08:56:31,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4894957983193278) internal successors, (709), 476 states have internal predecessors, (709), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 713 transitions. [2022-04-06 08:56:31,437 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 713 transitions. Word has length 148 [2022-04-06 08:56:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:31,437 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 713 transitions. [2022-04-06 08:56:31,437 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 713 transitions. [2022-04-06 08:56:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-06 08:56:31,439 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:31,439 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:31,439 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-06 08:56:31,439 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash -109907680, now seen corresponding path program 1 times [2022-04-06 08:56:31,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:31,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166335667] [2022-04-06 08:56:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:31,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:31,571 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-06 08:56:31,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:31,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166335667] [2022-04-06 08:56:31,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166335667] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:31,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:31,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:31,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205074739] [2022-04-06 08:56:31,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:31,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:31,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:31,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:31,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:31,573 INFO L87 Difference]: Start difference. First operand 481 states and 713 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:33,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:35,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:36,337 INFO L93 Difference]: Finished difference Result 548 states and 802 transitions. [2022-04-06 08:56:36,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:36,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-06 08:56:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:36,339 INFO L225 Difference]: With dead ends: 548 [2022-04-06 08:56:36,339 INFO L226 Difference]: Without dead ends: 548 [2022-04-06 08:56:36,339 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:36,340 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 118 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:36,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:56:36,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-04-06 08:56:36,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 481. [2022-04-06 08:56:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.4747899159663866) internal successors, (702), 476 states have internal predecessors, (702), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 706 transitions. [2022-04-06 08:56:36,347 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 706 transitions. Word has length 149 [2022-04-06 08:56:36,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:36,347 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 706 transitions. [2022-04-06 08:56:36,348 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 706 transitions. [2022-04-06 08:56:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-06 08:56:36,349 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:36,349 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:36,349 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-06 08:56:36,349 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:36,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2073111519, now seen corresponding path program 1 times [2022-04-06 08:56:36,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:36,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862539182] [2022-04-06 08:56:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:36,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-06 08:56:36,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:36,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862539182] [2022-04-06 08:56:36,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862539182] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:36,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:36,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:56:36,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442403907] [2022-04-06 08:56:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:36,471 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:56:36,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:36,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:56:36,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:36,472 INFO L87 Difference]: Start difference. First operand 481 states and 706 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:39,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:40,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:41,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:41,214 INFO L93 Difference]: Finished difference Result 927 states and 1359 transitions. [2022-04-06 08:56:41,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:41,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-06 08:56:41,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:41,216 INFO L225 Difference]: With dead ends: 927 [2022-04-06 08:56:41,216 INFO L226 Difference]: Without dead ends: 927 [2022-04-06 08:56:41,217 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:41,217 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 133 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:41,217 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 447 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 301 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-06 08:56:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2022-04-06 08:56:41,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 925. [2022-04-06 08:56:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 920 states have (on average 1.4717391304347827) internal successors, (1354), 920 states have internal predecessors, (1354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1358 transitions. [2022-04-06 08:56:41,229 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1358 transitions. Word has length 154 [2022-04-06 08:56:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:41,229 INFO L478 AbstractCegarLoop]: Abstraction has 925 states and 1358 transitions. [2022-04-06 08:56:41,229 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:41,230 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1358 transitions. [2022-04-06 08:56:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-06 08:56:41,232 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:41,232 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:41,232 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-06 08:56:41,232 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1086528830, now seen corresponding path program 1 times [2022-04-06 08:56:41,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:41,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112213342] [2022-04-06 08:56:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:41,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:41,366 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-04-06 08:56:41,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:41,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112213342] [2022-04-06 08:56:41,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112213342] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:41,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:41,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:56:41,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984588585] [2022-04-06 08:56:41,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:41,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:56:41,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:41,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:56:41,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:41,368 INFO L87 Difference]: Start difference. First operand 925 states and 1358 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:43,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:43,963 INFO L93 Difference]: Finished difference Result 952 states and 1393 transitions. [2022-04-06 08:56:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:43,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-06 08:56:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:43,966 INFO L225 Difference]: With dead ends: 952 [2022-04-06 08:56:43,966 INFO L226 Difference]: Without dead ends: 952 [2022-04-06 08:56:43,966 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:43,966 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:43,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 423 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-04-06 08:56:43,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-04-06 08:56:43,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 952. [2022-04-06 08:56:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 947 states have (on average 1.4667370644139388) internal successors, (1389), 947 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:43,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1393 transitions. [2022-04-06 08:56:43,978 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1393 transitions. Word has length 154 [2022-04-06 08:56:43,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:43,978 INFO L478 AbstractCegarLoop]: Abstraction has 952 states and 1393 transitions. [2022-04-06 08:56:43,978 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:43,978 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1393 transitions. [2022-04-06 08:56:43,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-04-06 08:56:43,981 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:43,981 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:43,981 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-06 08:56:43,981 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:43,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:43,981 INFO L85 PathProgramCache]: Analyzing trace with hash 794143005, now seen corresponding path program 1 times [2022-04-06 08:56:43,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:43,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804393512] [2022-04-06 08:56:43,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:43,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:44,082 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-04-06 08:56:44,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:44,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804393512] [2022-04-06 08:56:44,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804393512] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:44,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:44,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:56:44,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490051869] [2022-04-06 08:56:44,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:44,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:56:44,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:56:44,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:44,083 INFO L87 Difference]: Start difference. First operand 952 states and 1393 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:46,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:47,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:48,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:48,005 INFO L93 Difference]: Finished difference Result 954 states and 1395 transitions. [2022-04-06 08:56:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:56:48,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-04-06 08:56:48,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:48,007 INFO L225 Difference]: With dead ends: 954 [2022-04-06 08:56:48,007 INFO L226 Difference]: Without dead ends: 954 [2022-04-06 08:56:48,008 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:56:48,008 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:48,008 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-06 08:56:48,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-04-06 08:56:48,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-04-06 08:56:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4657534246575343) internal successors, (1391), 949 states have internal predecessors, (1391), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1395 transitions. [2022-04-06 08:56:48,020 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1395 transitions. Word has length 154 [2022-04-06 08:56:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:48,020 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1395 transitions. [2022-04-06 08:56:48,020 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1395 transitions. [2022-04-06 08:56:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-04-06 08:56:48,022 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:48,022 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:48,022 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-06 08:56:48,022 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:48,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1349201162, now seen corresponding path program 1 times [2022-04-06 08:56:48,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:48,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848911247] [2022-04-06 08:56:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:56:48,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:48,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848911247] [2022-04-06 08:56:48,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848911247] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:48,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:48,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:48,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551528200] [2022-04-06 08:56:48,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:48,150 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:48,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:48,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:48,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:48,151 INFO L87 Difference]: Start difference. First operand 954 states and 1395 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:49,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:50,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:52,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:54,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:54,525 INFO L93 Difference]: Finished difference Result 995 states and 1444 transitions. [2022-04-06 08:56:54,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:54,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-04-06 08:56:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:54,528 INFO L225 Difference]: With dead ends: 995 [2022-04-06 08:56:54,528 INFO L226 Difference]: Without dead ends: 995 [2022-04-06 08:56:54,528 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:54,529 INFO L913 BasicCegarLoop]: 212 mSDtfsCounter, 42 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:54,529 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 545 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-04-06 08:56:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-04-06 08:56:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 954. [2022-04-06 08:56:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.463645943097998) internal successors, (1389), 949 states have internal predecessors, (1389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1393 transitions. [2022-04-06 08:56:54,539 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1393 transitions. Word has length 155 [2022-04-06 08:56:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:54,539 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1393 transitions. [2022-04-06 08:56:54,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1393 transitions. [2022-04-06 08:56:54,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-04-06 08:56:54,541 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:54,541 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:54,541 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-06 08:56:54,541 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:54,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:54,542 INFO L85 PathProgramCache]: Analyzing trace with hash 753577337, now seen corresponding path program 1 times [2022-04-06 08:56:54,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:54,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503520105] [2022-04-06 08:56:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:54,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:54,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-04-06 08:56:54,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:54,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503520105] [2022-04-06 08:56:54,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503520105] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:54,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:54,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:54,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262519129] [2022-04-06 08:56:54,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:54,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:54,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:54,666 INFO L87 Difference]: Start difference. First operand 954 states and 1393 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:56,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:58,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:56:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:56:59,627 INFO L93 Difference]: Finished difference Result 991 states and 1438 transitions. [2022-04-06 08:56:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:56:59,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-04-06 08:56:59,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:56:59,630 INFO L225 Difference]: With dead ends: 991 [2022-04-06 08:56:59,630 INFO L226 Difference]: Without dead ends: 991 [2022-04-06 08:56:59,630 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:56:59,631 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 39 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:56:59,631 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-06 08:56:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-04-06 08:56:59,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 954. [2022-04-06 08:56:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 949 states have (on average 1.4615384615384615) internal successors, (1387), 949 states have internal predecessors, (1387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1391 transitions. [2022-04-06 08:56:59,642 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1391 transitions. Word has length 156 [2022-04-06 08:56:59,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:56:59,642 INFO L478 AbstractCegarLoop]: Abstraction has 954 states and 1391 transitions. [2022-04-06 08:56:59,642 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:56:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1391 transitions. [2022-04-06 08:56:59,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-04-06 08:56:59,644 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:56:59,644 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:56:59,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-06 08:56:59,644 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:56:59,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:56:59,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1839212727, now seen corresponding path program 1 times [2022-04-06 08:56:59,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:56:59,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375409680] [2022-04-06 08:56:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:56:59,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:56:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:59,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:56:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:56:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-04-06 08:56:59,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:56:59,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375409680] [2022-04-06 08:56:59,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375409680] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:56:59,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:56:59,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:56:59,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725891960] [2022-04-06 08:56:59,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:56:59,773 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:56:59,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:56:59,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:56:59,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:56:59,774 INFO L87 Difference]: Start difference. First operand 954 states and 1391 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:01,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:02,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:02,656 INFO L93 Difference]: Finished difference Result 1033 states and 1502 transitions. [2022-04-06 08:57:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-04-06 08:57:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:02,658 INFO L225 Difference]: With dead ends: 1033 [2022-04-06 08:57:02,659 INFO L226 Difference]: Without dead ends: 1033 [2022-04-06 08:57:02,659 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:02,659 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 28 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:02,659 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 605 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:57:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-04-06 08:57:02,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1006. [2022-04-06 08:57:02,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4615384615384615) internal successors, (1463), 1001 states have internal predecessors, (1463), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1467 transitions. [2022-04-06 08:57:02,670 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1467 transitions. Word has length 157 [2022-04-06 08:57:02,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:02,670 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1467 transitions. [2022-04-06 08:57:02,671 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1467 transitions. [2022-04-06 08:57:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-04-06 08:57:02,673 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:02,673 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:02,673 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-06 08:57:02,673 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:02,673 INFO L85 PathProgramCache]: Analyzing trace with hash 395348402, now seen corresponding path program 1 times [2022-04-06 08:57:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:02,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623625089] [2022-04-06 08:57:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:02,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:57:02,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:02,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623625089] [2022-04-06 08:57:02,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623625089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:02,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:02,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:02,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345723225] [2022-04-06 08:57:02,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:02,790 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:02,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:02,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:02,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:02,791 INFO L87 Difference]: Start difference. First operand 1006 states and 1467 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:04,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:05,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:06,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:06,150 INFO L93 Difference]: Finished difference Result 1043 states and 1512 transitions. [2022-04-06 08:57:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:06,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-04-06 08:57:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:06,153 INFO L225 Difference]: With dead ends: 1043 [2022-04-06 08:57:06,154 INFO L226 Difference]: Without dead ends: 1043 [2022-04-06 08:57:06,154 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:06,154 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 48 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:06,154 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 547 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-06 08:57:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2022-04-06 08:57:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1006. [2022-04-06 08:57:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4595404595404595) internal successors, (1461), 1001 states have internal predecessors, (1461), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1465 transitions. [2022-04-06 08:57:06,165 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1465 transitions. Word has length 163 [2022-04-06 08:57:06,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:06,165 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1465 transitions. [2022-04-06 08:57:06,165 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:06,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1465 transitions. [2022-04-06 08:57:06,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-06 08:57:06,167 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:06,167 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:06,167 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-06 08:57:06,168 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash 374542751, now seen corresponding path program 1 times [2022-04-06 08:57:06,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:06,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445671941] [2022-04-06 08:57:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:06,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:57:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:06,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445671941] [2022-04-06 08:57:06,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445671941] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:06,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:06,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:06,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417215280] [2022-04-06 08:57:06,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:06,289 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:06,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:06,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:06,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:06,290 INFO L87 Difference]: Start difference. First operand 1006 states and 1465 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:08,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:10,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:10,649 INFO L93 Difference]: Finished difference Result 1137 states and 1631 transitions. [2022-04-06 08:57:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:10,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-04-06 08:57:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:10,654 INFO L225 Difference]: With dead ends: 1137 [2022-04-06 08:57:10,654 INFO L226 Difference]: Without dead ends: 1137 [2022-04-06 08:57:10,654 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:10,656 INFO L913 BasicCegarLoop]: 135 mSDtfsCounter, 119 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:10,656 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 384 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-06 08:57:10,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-04-06 08:57:10,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1006. [2022-04-06 08:57:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4455544455544456) internal successors, (1447), 1001 states have internal predecessors, (1447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1451 transitions. [2022-04-06 08:57:10,669 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1451 transitions. Word has length 164 [2022-04-06 08:57:10,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:10,670 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1451 transitions. [2022-04-06 08:57:10,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:10,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1451 transitions. [2022-04-06 08:57:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-04-06 08:57:10,672 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:10,672 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:10,672 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-06 08:57:10,672 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:10,672 INFO L85 PathProgramCache]: Analyzing trace with hash 663485998, now seen corresponding path program 1 times [2022-04-06 08:57:10,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:10,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237231160] [2022-04-06 08:57:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:10,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:57:10,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:10,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237231160] [2022-04-06 08:57:10,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237231160] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:10,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:10,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:10,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934397729] [2022-04-06 08:57:10,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:10,798 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:10,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:10,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:10,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:10,799 INFO L87 Difference]: Start difference. First operand 1006 states and 1451 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:12,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:14,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:16,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:18,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:18,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:18,664 INFO L93 Difference]: Finished difference Result 1039 states and 1490 transitions. [2022-04-06 08:57:18,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:18,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-04-06 08:57:18,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:18,667 INFO L225 Difference]: With dead ends: 1039 [2022-04-06 08:57:18,667 INFO L226 Difference]: Without dead ends: 1039 [2022-04-06 08:57:18,668 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:18,668 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 38 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:18,668 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 553 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 461 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-04-06 08:57:18,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-04-06 08:57:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1006. [2022-04-06 08:57:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4435564435564436) internal successors, (1445), 1001 states have internal predecessors, (1445), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1449 transitions. [2022-04-06 08:57:18,680 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1449 transitions. Word has length 166 [2022-04-06 08:57:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:18,680 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1449 transitions. [2022-04-06 08:57:18,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1449 transitions. [2022-04-06 08:57:18,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-06 08:57:18,681 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:18,682 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:18,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-06 08:57:18,682 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:18,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1857596404, now seen corresponding path program 1 times [2022-04-06 08:57:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:18,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913125880] [2022-04-06 08:57:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:18,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:18,838 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-06 08:57:18,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:18,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913125880] [2022-04-06 08:57:18,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913125880] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:18,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:18,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:18,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197859507] [2022-04-06 08:57:18,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:18,841 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:18,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:18,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:18,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:18,841 INFO L87 Difference]: Start difference. First operand 1006 states and 1449 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:20,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:21,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:21,751 INFO L93 Difference]: Finished difference Result 1031 states and 1478 transitions. [2022-04-06 08:57:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-04-06 08:57:21,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:21,754 INFO L225 Difference]: With dead ends: 1031 [2022-04-06 08:57:21,754 INFO L226 Difference]: Without dead ends: 1031 [2022-04-06 08:57:21,754 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:21,754 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 33 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:21,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 557 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-04-06 08:57:21,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-04-06 08:57:21,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1006. [2022-04-06 08:57:21,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 1001 states have (on average 1.4415584415584415) internal successors, (1443), 1001 states have internal predecessors, (1443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:21,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1447 transitions. [2022-04-06 08:57:21,764 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1447 transitions. Word has length 167 [2022-04-06 08:57:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:21,764 INFO L478 AbstractCegarLoop]: Abstraction has 1006 states and 1447 transitions. [2022-04-06 08:57:21,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1447 transitions. [2022-04-06 08:57:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 08:57:21,765 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:21,766 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:21,766 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-06 08:57:21,766 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:21,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:21,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2024925367, now seen corresponding path program 1 times [2022-04-06 08:57:21,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:21,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733295639] [2022-04-06 08:57:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:21,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:21,891 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-06 08:57:21,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:21,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733295639] [2022-04-06 08:57:21,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733295639] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:21,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:21,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:57:21,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887154945] [2022-04-06 08:57:21,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:21,892 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:57:21,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:21,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:57:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:57:21,893 INFO L87 Difference]: Start difference. First operand 1006 states and 1447 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:23,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:24,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:25,340 INFO L93 Difference]: Finished difference Result 1479 states and 2128 transitions. [2022-04-06 08:57:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:57:25,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 08:57:25,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:25,344 INFO L225 Difference]: With dead ends: 1479 [2022-04-06 08:57:25,344 INFO L226 Difference]: Without dead ends: 1479 [2022-04-06 08:57:25,344 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:57:25,345 INFO L913 BasicCegarLoop]: 382 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:25,345 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 576 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:57:25,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-04-06 08:57:25,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2022-04-06 08:57:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1474 states have (on average 1.440976933514247) internal successors, (2124), 1474 states have internal predecessors, (2124), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2128 transitions. [2022-04-06 08:57:25,359 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2128 transitions. Word has length 173 [2022-04-06 08:57:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:25,360 INFO L478 AbstractCegarLoop]: Abstraction has 1479 states and 2128 transitions. [2022-04-06 08:57:25,360 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2128 transitions. [2022-04-06 08:57:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-06 08:57:25,362 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:25,362 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:25,362 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-06 08:57:25,362 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:25,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:25,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1944610709, now seen corresponding path program 1 times [2022-04-06 08:57:25,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:25,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038528193] [2022-04-06 08:57:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:25,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-06 08:57:25,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:25,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038528193] [2022-04-06 08:57:25,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038528193] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:25,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:25,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-06 08:57:25,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385302798] [2022-04-06 08:57:25,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:25,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-06 08:57:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:25,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-06 08:57:25,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:57:25,501 INFO L87 Difference]: Start difference. First operand 1479 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:27,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:28,628 INFO L93 Difference]: Finished difference Result 1917 states and 2757 transitions. [2022-04-06 08:57:28,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-06 08:57:28,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-04-06 08:57:28,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:28,637 INFO L225 Difference]: With dead ends: 1917 [2022-04-06 08:57:28,637 INFO L226 Difference]: Without dead ends: 1917 [2022-04-06 08:57:28,637 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-06 08:57:28,638 INFO L913 BasicCegarLoop]: 305 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:28,638 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 499 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-06 08:57:28,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2022-04-06 08:57:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1911. [2022-04-06 08:57:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1906 states have (on average 1.441762854144806) internal successors, (2748), 1906 states have internal predecessors, (2748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2752 transitions. [2022-04-06 08:57:28,656 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2752 transitions. Word has length 174 [2022-04-06 08:57:28,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:28,656 INFO L478 AbstractCegarLoop]: Abstraction has 1911 states and 2752 transitions. [2022-04-06 08:57:28,656 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2752 transitions. [2022-04-06 08:57:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-04-06 08:57:28,659 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:28,659 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:28,659 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-06 08:57:28,659 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:28,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:28,660 INFO L85 PathProgramCache]: Analyzing trace with hash 790409397, now seen corresponding path program 1 times [2022-04-06 08:57:28,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:28,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733421937] [2022-04-06 08:57:28,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:28,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-04-06 08:57:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:28,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733421937] [2022-04-06 08:57:28,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733421937] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:28,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:28,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:28,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800168901] [2022-04-06 08:57:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:28,795 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:28,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:28,795 INFO L87 Difference]: Start difference. First operand 1911 states and 2752 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:32,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:33,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:33,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:33,786 INFO L93 Difference]: Finished difference Result 2108 states and 3035 transitions. [2022-04-06 08:57:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:33,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 185 [2022-04-06 08:57:33,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:33,791 INFO L225 Difference]: With dead ends: 2108 [2022-04-06 08:57:33,792 INFO L226 Difference]: Without dead ends: 2108 [2022-04-06 08:57:33,792 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:33,792 INFO L913 BasicCegarLoop]: 248 mSDtfsCounter, 38 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:33,792 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 615 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-06 08:57:33,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2022-04-06 08:57:33,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2023. [2022-04-06 08:57:33,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.4430128840436076) internal successors, (2912), 2018 states have internal predecessors, (2912), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:33,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2916 transitions. [2022-04-06 08:57:33,827 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2916 transitions. Word has length 185 [2022-04-06 08:57:33,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:33,827 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2916 transitions. [2022-04-06 08:57:33,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:33,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2916 transitions. [2022-04-06 08:57:33,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-04-06 08:57:33,829 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:33,830 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:33,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-06 08:57:33,830 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:33,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash -746379742, now seen corresponding path program 1 times [2022-04-06 08:57:33,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:33,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770545429] [2022-04-06 08:57:33,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:33,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:33,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-06 08:57:33,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:33,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770545429] [2022-04-06 08:57:33,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770545429] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:33,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:33,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:33,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135010499] [2022-04-06 08:57:33,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:33,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:33,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:33,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:33,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:33,993 INFO L87 Difference]: Start difference. First operand 2023 states and 2916 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:36,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:37,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:37,421 INFO L93 Difference]: Finished difference Result 2234 states and 3173 transitions. [2022-04-06 08:57:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:37,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2022-04-06 08:57:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:37,426 INFO L225 Difference]: With dead ends: 2234 [2022-04-06 08:57:37,426 INFO L226 Difference]: Without dead ends: 2234 [2022-04-06 08:57:37,426 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:37,426 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 107 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:37,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 404 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-06 08:57:37,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2022-04-06 08:57:37,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 2023. [2022-04-06 08:57:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2023 states, 2018 states have (on average 1.431615460852329) internal successors, (2889), 2018 states have internal predecessors, (2889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:37,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2893 transitions. [2022-04-06 08:57:37,450 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2893 transitions. Word has length 189 [2022-04-06 08:57:37,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:37,450 INFO L478 AbstractCegarLoop]: Abstraction has 2023 states and 2893 transitions. [2022-04-06 08:57:37,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2893 transitions. [2022-04-06 08:57:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-04-06 08:57:37,453 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:37,453 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:37,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-06 08:57:37,453 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash -2132148959, now seen corresponding path program 1 times [2022-04-06 08:57:37,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:37,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027368762] [2022-04-06 08:57:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:37,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-06 08:57:37,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:37,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027368762] [2022-04-06 08:57:37,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027368762] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:37,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:37,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:37,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604784606] [2022-04-06 08:57:37,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:37,607 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:37,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:37,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:37,608 INFO L87 Difference]: Start difference. First operand 2023 states and 2893 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:39,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:41,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:41,237 INFO L93 Difference]: Finished difference Result 2232 states and 3178 transitions. [2022-04-06 08:57:41,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:41,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-04-06 08:57:41,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:41,242 INFO L225 Difference]: With dead ends: 2232 [2022-04-06 08:57:41,242 INFO L226 Difference]: Without dead ends: 2232 [2022-04-06 08:57:41,242 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:41,242 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 57 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:41,243 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 608 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-04-06 08:57:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-04-06 08:57:41,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 2128. [2022-04-06 08:57:41,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.431464908148846) internal successors, (3039), 2123 states have internal predecessors, (3039), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:41,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3043 transitions. [2022-04-06 08:57:41,267 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3043 transitions. Word has length 196 [2022-04-06 08:57:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:41,267 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3043 transitions. [2022-04-06 08:57:41,268 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3043 transitions. [2022-04-06 08:57:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-04-06 08:57:41,271 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:41,271 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:41,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-06 08:57:41,271 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2042967890, now seen corresponding path program 1 times [2022-04-06 08:57:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:41,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997794301] [2022-04-06 08:57:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:41,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:41,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-06 08:57:41,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:41,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997794301] [2022-04-06 08:57:41,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997794301] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:41,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:41,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-06 08:57:41,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934741341] [2022-04-06 08:57:41,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:41,407 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-06 08:57:41,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:41,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-06 08:57:41,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-06 08:57:41,408 INFO L87 Difference]: Start difference. First operand 2128 states and 3043 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:43,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:45,433 INFO L93 Difference]: Finished difference Result 2375 states and 3367 transitions. [2022-04-06 08:57:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-06 08:57:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-04-06 08:57:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:45,437 INFO L225 Difference]: With dead ends: 2375 [2022-04-06 08:57:45,437 INFO L226 Difference]: Without dead ends: 2375 [2022-04-06 08:57:45,437 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-06 08:57:45,438 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 108 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:45,438 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 392 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-04-06 08:57:45,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2022-04-06 08:57:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 2128. [2022-04-06 08:57:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.4258125294394723) internal successors, (3027), 2123 states have internal predecessors, (3027), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3031 transitions. [2022-04-06 08:57:45,475 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3031 transitions. Word has length 197 [2022-04-06 08:57:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:45,477 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3031 transitions. [2022-04-06 08:57:45,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3031 transitions. [2022-04-06 08:57:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-06 08:57:45,480 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:45,481 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:45,481 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-06 08:57:45,481 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:45,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2042368162, now seen corresponding path program 1 times [2022-04-06 08:57:45,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:45,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276399017] [2022-04-06 08:57:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:45,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-04-06 08:57:46,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:46,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276399017] [2022-04-06 08:57:46,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276399017] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 08:57:46,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 08:57:46,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-06 08:57:46,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153327241] [2022-04-06 08:57:46,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 08:57:46,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-06 08:57:46,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-06 08:57:46,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-06 08:57:46,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-06 08:57:46,066 INFO L87 Difference]: Start difference. First operand 2128 states and 3031 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:47,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:49,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:51,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:53,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-06 08:57:54,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 08:57:54,435 INFO L93 Difference]: Finished difference Result 2136 states and 3041 transitions. [2022-04-06 08:57:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-06 08:57:54,435 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-04-06 08:57:54,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 08:57:54,439 INFO L225 Difference]: With dead ends: 2136 [2022-04-06 08:57:54,439 INFO L226 Difference]: Without dead ends: 2128 [2022-04-06 08:57:54,439 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-06 08:57:54,440 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 7 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-06 08:57:54,442 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 871 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 449 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-04-06 08:57:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2022-04-06 08:57:54,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2022-04-06 08:57:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2123 states have (on average 1.425341497880358) internal successors, (3026), 2123 states have internal predecessors, (3026), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3030 transitions. [2022-04-06 08:57:54,463 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3030 transitions. Word has length 198 [2022-04-06 08:57:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 08:57:54,463 INFO L478 AbstractCegarLoop]: Abstraction has 2128 states and 3030 transitions. [2022-04-06 08:57:54,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 08:57:54,463 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3030 transitions. [2022-04-06 08:57:54,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-06 08:57:54,466 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 08:57:54,466 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 08:57:54,466 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-06 08:57:54,466 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 08:57:54,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 08:57:54,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1798831299, now seen corresponding path program 1 times [2022-04-06 08:57:54,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 08:57:54,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644998376] [2022-04-06 08:57:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 08:57:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 08:57:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-04-06 08:57:55,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 08:57:55,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644998376] [2022-04-06 08:57:55,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644998376] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 08:57:55,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056294499] [2022-04-06 08:57:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 08:57:55,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 08:57:55,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 08:57:55,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 08:57:55,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 08:57:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 08:57:56,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 173 conjunts are in the unsatisfiable core [2022-04-06 08:57:56,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 08:57:57,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14076 treesize of output 12060 [2022-04-06 08:57:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 08:57:57,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5440 treesize of output 866