/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.07.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:21:12,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:21:12,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:21:12,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:21:12,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:21:12,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:21:12,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:21:12,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:21:12,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:21:12,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:21:12,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:21:12,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:21:12,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:21:12,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:21:12,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:21:12,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:21:12,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:21:12,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:21:12,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:21:12,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:21:12,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:21:12,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:21:12,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:21:12,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:21:12,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:21:12,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:21:12,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:21:12,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:21:12,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:21:12,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:21:12,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:21:12,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:21:12,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:21:12,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:21:12,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:21:12,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:21:12,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:21:12,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:21:12,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:21:12,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:21:12,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:21:12,108 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:21:12,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:21:12,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:21:12,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:21:12,117 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:21:12,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:21:12,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:21:12,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:21:12,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:21:12,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:21:12,119 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:21:12,119 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:21:12,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:21:12,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:21:12,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:21:12,120 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:21:12,121 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:21:12,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:21:12,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:21:12,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:21:12,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:21:12,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:21:12,376 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:21:12,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-01-31 16:21:12,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1549e0fd6/2633b4510b2d4cf38b35ba8acd882981/FLAG88574fcd3 [2022-01-31 16:21:12,979 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:21:12,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.07.i.cil-1.c [2022-01-31 16:21:13,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1549e0fd6/2633b4510b2d4cf38b35ba8acd882981/FLAG88574fcd3 [2022-01-31 16:21:13,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1549e0fd6/2633b4510b2d4cf38b35ba8acd882981 [2022-01-31 16:21:13,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:21:13,243 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:21:13,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:21:13,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:21:13,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:21:13,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70744373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13, skipping insertion in model container [2022-01-31 16:21:13,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:21:13,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:21:13,646 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.07.i.cil-1.c[74369,74382] [2022-01-31 16:21:13,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:21:13,674 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:21:13,768 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.07.i.cil-1.c[74369,74382] [2022-01-31 16:21:13,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:21:13,785 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:21:13,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13 WrapperNode [2022-01-31 16:21:13,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:21:13,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:21:13,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:21:13,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:21:13,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:21:13,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:21:13,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:21:13,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:21:13,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (1/1) ... [2022-01-31 16:21:13,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:21:13,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:21:13,946 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) [2022-01-31 16:21:13,974 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 [2022-01-31 16:21:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:21:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:21:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:21:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:21:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:21:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:21:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:21:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:21:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:21:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:21:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:21:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:21:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:21:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:21:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:21:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:21:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:21:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:21:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:21:14,179 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:21:14,181 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:21:15,127 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:21:15,541 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:21:15,541 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:21:15,553 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:21:15,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:21:15,561 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:21:15,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:21:15 BoogieIcfgContainer [2022-01-31 16:21:15,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:21:15,564 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:21:15,564 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:21:15,565 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:21:15,568 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:21:15" (1/1) ... [2022-01-31 16:21:15,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:21:15 BasicIcfg [2022-01-31 16:21:15,606 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:21:15,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:21:15,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:21:15,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:21:15,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:21:13" (1/4) ... [2022-01-31 16:21:15,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79369680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:21:15, skipping insertion in model container [2022-01-31 16:21:15,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:21:13" (2/4) ... [2022-01-31 16:21:15,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79369680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:21:15, skipping insertion in model container [2022-01-31 16:21:15,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:21:15" (3/4) ... [2022-01-31 16:21:15,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79369680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:21:15, skipping insertion in model container [2022-01-31 16:21:15,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:21:15" (4/4) ... [2022-01-31 16:21:15,613 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.07.i.cil-1.cJordan [2022-01-31 16:21:15,618 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:21:15,619 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:21:15,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:21:15,662 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:21:15,662 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:21:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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) [2022-01-31 16:21:15,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-31 16:21:15,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:15,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:15,687 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:15,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1099342272, now seen corresponding path program 1 times [2022-01-31 16:21:15,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:15,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223235631] [2022-01-31 16:21:15,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:15,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:16,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:16,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223235631] [2022-01-31 16:21:16,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223235631] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:16,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:16,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:16,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091498087] [2022-01-31 16:21:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:16,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:16,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:16,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:16,226 INFO L87 Difference]: Start difference. First operand has 158 states, 150 states have (on average 1.7066666666666668) internal successors, (256), 151 states have internal predecessors, (256), 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 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:19,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:20,030 INFO L93 Difference]: Finished difference Result 191 states and 312 transitions. [2022-01-31 16:21:20,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 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 42 [2022-01-31 16:21:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:20,045 INFO L225 Difference]: With dead ends: 191 [2022-01-31 16:21:20,045 INFO L226 Difference]: Without dead ends: 170 [2022-01-31 16:21:20,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:20,051 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 34 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:20,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 607 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:21:20,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-01-31 16:21:20,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 153. [2022-01-31 16:21:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 148 states have (on average 1.554054054054054) internal successors, (230), 148 states have internal predecessors, (230), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:20,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 234 transitions. [2022-01-31 16:21:20,115 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 234 transitions. Word has length 42 [2022-01-31 16:21:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:20,116 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 234 transitions. [2022-01-31 16:21:20,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 234 transitions. [2022-01-31 16:21:20,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-31 16:21:20,118 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:20,118 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:20,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:21:20,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:20,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:20,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1972024210, now seen corresponding path program 1 times [2022-01-31 16:21:20,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:20,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666053783] [2022-01-31 16:21:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:20,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:20,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:20,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666053783] [2022-01-31 16:21:20,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666053783] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:20,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:20,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:20,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195395540] [2022-01-31 16:21:20,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:20,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:20,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:20,368 INFO L87 Difference]: Start difference. First operand 153 states and 234 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:23,698 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 [] [2022-01-31 16:21:24,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:24,872 INFO L93 Difference]: Finished difference Result 270 states and 414 transitions. [2022-01-31 16:21:24,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:24,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 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 55 [2022-01-31 16:21:24,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:24,874 INFO L225 Difference]: With dead ends: 270 [2022-01-31 16:21:24,875 INFO L226 Difference]: Without dead ends: 270 [2022-01-31 16:21:24,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:24,876 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 143 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:24,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 626 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 621 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:21:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-01-31 16:21:24,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 169. [2022-01-31 16:21:24,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5548780487804879) internal successors, (255), 164 states have internal predecessors, (255), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:24,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 259 transitions. [2022-01-31 16:21:24,892 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 259 transitions. Word has length 55 [2022-01-31 16:21:24,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:24,892 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 259 transitions. [2022-01-31 16:21:24,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 259 transitions. [2022-01-31 16:21:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-31 16:21:24,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:24,894 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:24,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:21:24,894 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:24,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1748095558, now seen corresponding path program 1 times [2022-01-31 16:21:24,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:24,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790738222] [2022-01-31 16:21:24,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:24,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:25,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:25,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790738222] [2022-01-31 16:21:25,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790738222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:25,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:25,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:25,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346338200] [2022-01-31 16:21:25,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:25,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:25,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:25,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:25,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:25,054 INFO L87 Difference]: Start difference. First operand 169 states and 259 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:27,614 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 [] [2022-01-31 16:21:29,667 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 [] [2022-01-31 16:21:30,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:30,059 INFO L93 Difference]: Finished difference Result 185 states and 278 transitions. [2022-01-31 16:21:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:30,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-01-31 16:21:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:30,062 INFO L225 Difference]: With dead ends: 185 [2022-01-31 16:21:30,062 INFO L226 Difference]: Without dead ends: 185 [2022-01-31 16:21:30,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:30,063 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:30,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 16:21:30,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-01-31 16:21:30,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-01-31 16:21:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.548780487804878) internal successors, (254), 164 states have internal predecessors, (254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 258 transitions. [2022-01-31 16:21:30,076 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 258 transitions. Word has length 56 [2022-01-31 16:21:30,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:30,076 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 258 transitions. [2022-01-31 16:21:30,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 258 transitions. [2022-01-31 16:21:30,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-31 16:21:30,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:30,078 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:30,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:21:30,079 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:30,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:30,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1209199142, now seen corresponding path program 1 times [2022-01-31 16:21:30,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:30,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78187009] [2022-01-31 16:21:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:30,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:30,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:30,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78187009] [2022-01-31 16:21:30,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78187009] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:30,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:30,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:30,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191025783] [2022-01-31 16:21:30,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:30,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:30,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:30,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:30,214 INFO L87 Difference]: Start difference. First operand 169 states and 258 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:31,659 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 [] [2022-01-31 16:21:33,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:34,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:36,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:37,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:37,073 INFO L93 Difference]: Finished difference Result 185 states and 277 transitions. [2022-01-31 16:21:37,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:37,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-01-31 16:21:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:37,075 INFO L225 Difference]: With dead ends: 185 [2022-01-31 16:21:37,075 INFO L226 Difference]: Without dead ends: 185 [2022-01-31 16:21:37,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:37,076 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 26 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:37,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 485 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-01-31 16:21:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-01-31 16:21:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 169. [2022-01-31 16:21:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5426829268292683) internal successors, (253), 164 states have internal predecessors, (253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:37,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 257 transitions. [2022-01-31 16:21:37,083 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 257 transitions. Word has length 56 [2022-01-31 16:21:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:37,084 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 257 transitions. [2022-01-31 16:21:37,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 257 transitions. [2022-01-31 16:21:37,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-31 16:21:37,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:37,086 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:37,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:21:37,086 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:37,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1966452198, now seen corresponding path program 1 times [2022-01-31 16:21:37,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:37,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232699809] [2022-01-31 16:21:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:37,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:37,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:37,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232699809] [2022-01-31 16:21:37,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232699809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:37,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:37,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:37,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817302145] [2022-01-31 16:21:37,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:37,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:37,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:37,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:37,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:37,198 INFO L87 Difference]: Start difference. First operand 169 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:41,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:41,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:41,988 INFO L93 Difference]: Finished difference Result 183 states and 274 transitions. [2022-01-31 16:21:41,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:41,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-01-31 16:21:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:41,989 INFO L225 Difference]: With dead ends: 183 [2022-01-31 16:21:41,990 INFO L226 Difference]: Without dead ends: 183 [2022-01-31 16:21:41,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:41,990 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 20 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:41,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 489 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 16:21:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-01-31 16:21:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 169. [2022-01-31 16:21:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5365853658536586) internal successors, (252), 164 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:41,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2022-01-31 16:21:41,996 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 56 [2022-01-31 16:21:41,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:41,996 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2022-01-31 16:21:41,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:41,997 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2022-01-31 16:21:41,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-31 16:21:41,998 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:41,998 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:41,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:21:41,999 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:41,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:41,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1979822394, now seen corresponding path program 1 times [2022-01-31 16:21:41,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:41,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883967074] [2022-01-31 16:21:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:42,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:42,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:42,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883967074] [2022-01-31 16:21:42,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883967074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:42,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:42,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:42,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971494231] [2022-01-31 16:21:42,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:42,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:42,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:42,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:42,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:42,114 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:45,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:46,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:47,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:47,259 INFO L93 Difference]: Finished difference Result 285 states and 435 transitions. [2022-01-31 16:21:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:47,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 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 56 [2022-01-31 16:21:47,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:47,261 INFO L225 Difference]: With dead ends: 285 [2022-01-31 16:21:47,261 INFO L226 Difference]: Without dead ends: 285 [2022-01-31 16:21:47,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:47,261 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 141 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:47,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 16:21:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-01-31 16:21:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-01-31 16:21:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.543956043956044) internal successors, (281), 182 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 285 transitions. [2022-01-31 16:21:47,272 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 285 transitions. Word has length 56 [2022-01-31 16:21:47,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:47,272 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 285 transitions. [2022-01-31 16:21:47,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 285 transitions. [2022-01-31 16:21:47,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-31 16:21:47,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:47,274 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:47,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:21:47,275 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:47,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:47,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1222198510, now seen corresponding path program 1 times [2022-01-31 16:21:47,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:47,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656856787] [2022-01-31 16:21:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:47,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:47,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:47,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:47,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:47,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656856787] [2022-01-31 16:21:47,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656856787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:47,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:47,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:47,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108537895] [2022-01-31 16:21:47,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:47,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:47,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:47,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:47,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:47,406 INFO L87 Difference]: Start difference. First operand 187 states and 285 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:48,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:50,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:52,726 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 [] [2022-01-31 16:21:53,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:53,275 INFO L93 Difference]: Finished difference Result 285 states and 432 transitions. [2022-01-31 16:21:53,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:53,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 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 57 [2022-01-31 16:21:53,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:53,277 INFO L225 Difference]: With dead ends: 285 [2022-01-31 16:21:53,277 INFO L226 Difference]: Without dead ends: 285 [2022-01-31 16:21:53,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:53,278 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 145 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:53,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:21:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-01-31 16:21:53,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 187. [2022-01-31 16:21:53,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5274725274725274) internal successors, (278), 182 states have internal predecessors, (278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 282 transitions. [2022-01-31 16:21:53,284 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 282 transitions. Word has length 57 [2022-01-31 16:21:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:53,285 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 282 transitions. [2022-01-31 16:21:53,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 282 transitions. [2022-01-31 16:21:53,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-31 16:21:53,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:53,286 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:53,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:21:53,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:53,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1020945954, now seen corresponding path program 1 times [2022-01-31 16:21:53,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:53,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946871805] [2022-01-31 16:21:53,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:53,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:53,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:53,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946871805] [2022-01-31 16:21:53,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946871805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:53,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:53,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:53,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128568475] [2022-01-31 16:21:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:53,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:53,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:53,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:53,403 INFO L87 Difference]: Start difference. First operand 187 states and 282 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:56,980 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 [] [2022-01-31 16:21:59,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:21:59,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:21:59,396 INFO L93 Difference]: Finished difference Result 200 states and 298 transitions. [2022-01-31 16:21:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:21:59,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 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 58 [2022-01-31 16:21:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:21:59,398 INFO L225 Difference]: With dead ends: 200 [2022-01-31 16:21:59,398 INFO L226 Difference]: Without dead ends: 200 [2022-01-31 16:21:59,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:21:59,399 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:21:59,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 491 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-01-31 16:21:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-01-31 16:21:59,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 187. [2022-01-31 16:21:59,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.521978021978022) internal successors, (277), 182 states have internal predecessors, (277), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:59,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 281 transitions. [2022-01-31 16:21:59,404 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 281 transitions. Word has length 58 [2022-01-31 16:21:59,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:21:59,404 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 281 transitions. [2022-01-31 16:21:59,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:21:59,404 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 281 transitions. [2022-01-31 16:21:59,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-31 16:21:59,405 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:21:59,405 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:21:59,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:21:59,405 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:21:59,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:21:59,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1845134763, now seen corresponding path program 1 times [2022-01-31 16:21:59,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:21:59,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864138480] [2022-01-31 16:21:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:21:59,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:21:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:59,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:21:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:21:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:21:59,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:21:59,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864138480] [2022-01-31 16:21:59,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864138480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:21:59,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:21:59,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:21:59,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701073565] [2022-01-31 16:21:59,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:21:59,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:21:59,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:21:59,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:21:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:21:59,524 INFO L87 Difference]: Start difference. First operand 187 states and 281 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:01,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:03,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:05,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:05,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:05,778 INFO L93 Difference]: Finished difference Result 190 states and 284 transitions. [2022-01-31 16:22:05,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:05,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 59 [2022-01-31 16:22:05,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:05,780 INFO L225 Difference]: With dead ends: 190 [2022-01-31 16:22:05,780 INFO L226 Difference]: Without dead ends: 190 [2022-01-31 16:22:05,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:05,781 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 11 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:05,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 505 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:22:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-01-31 16:22:05,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2022-01-31 16:22:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.5164835164835164) internal successors, (276), 182 states have internal predecessors, (276), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 280 transitions. [2022-01-31 16:22:05,786 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 280 transitions. Word has length 59 [2022-01-31 16:22:05,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:05,786 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 280 transitions. [2022-01-31 16:22:05,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:05,786 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 280 transitions. [2022-01-31 16:22:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-31 16:22:05,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:05,787 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:05,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:22:05,788 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:05,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:05,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1478412284, now seen corresponding path program 1 times [2022-01-31 16:22:05,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:05,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123730394] [2022-01-31 16:22:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:05,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:05,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:05,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123730394] [2022-01-31 16:22:05,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123730394] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:05,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:05,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:05,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108980819] [2022-01-31 16:22:05,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:05,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:05,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:05,902 INFO L87 Difference]: Start difference. First operand 187 states and 280 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:07,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:08,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:08,447 INFO L93 Difference]: Finished difference Result 303 states and 457 transitions. [2022-01-31 16:22:08,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:08,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 59 [2022-01-31 16:22:08,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:08,448 INFO L225 Difference]: With dead ends: 303 [2022-01-31 16:22:08,449 INFO L226 Difference]: Without dead ends: 303 [2022-01-31 16:22:08,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:08,449 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 130 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:08,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 344 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:22:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-01-31 16:22:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 215. [2022-01-31 16:22:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5380952380952382) internal successors, (323), 210 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) [2022-01-31 16:22:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 327 transitions. [2022-01-31 16:22:08,455 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 327 transitions. Word has length 59 [2022-01-31 16:22:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:08,456 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 327 transitions. [2022-01-31 16:22:08,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 327 transitions. [2022-01-31 16:22:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-31 16:22:08,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:08,457 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:22:08,457 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:08,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash 478953171, now seen corresponding path program 1 times [2022-01-31 16:22:08,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:08,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918348182] [2022-01-31 16:22:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:08,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:08,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:08,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918348182] [2022-01-31 16:22:08,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918348182] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:08,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:08,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:08,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398578911] [2022-01-31 16:22:08,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:08,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:08,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:08,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:08,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:08,592 INFO L87 Difference]: Start difference. First operand 215 states and 327 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:10,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:11,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:11,000 INFO L93 Difference]: Finished difference Result 257 states and 388 transitions. [2022-01-31 16:22:11,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:11,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 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 60 [2022-01-31 16:22:11,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:11,002 INFO L225 Difference]: With dead ends: 257 [2022-01-31 16:22:11,003 INFO L226 Difference]: Without dead ends: 257 [2022-01-31 16:22:11,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:11,003 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 31 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:11,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 505 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:22:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-01-31 16:22:11,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 237. [2022-01-31 16:22:11,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.543103448275862) internal successors, (358), 232 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) [2022-01-31 16:22:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 362 transitions. [2022-01-31 16:22:11,009 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 362 transitions. Word has length 60 [2022-01-31 16:22:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:11,010 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 362 transitions. [2022-01-31 16:22:11,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 362 transitions. [2022-01-31 16:22:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 16:22:11,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:11,011 INFO L514 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] [2022-01-31 16:22:11,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:22:11,011 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:11,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1095309927, now seen corresponding path program 1 times [2022-01-31 16:22:11,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:11,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980941438] [2022-01-31 16:22:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:11,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-31 16:22:11,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:11,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980941438] [2022-01-31 16:22:11,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980941438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:11,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:11,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:11,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17427552] [2022-01-31 16:22:11,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:11,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:11,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:11,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:11,122 INFO L87 Difference]: Start difference. First operand 237 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:14,718 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:16,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:17,089 INFO L93 Difference]: Finished difference Result 250 states and 377 transitions. [2022-01-31 16:22:17,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:17,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 74 [2022-01-31 16:22:17,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:17,090 INFO L225 Difference]: With dead ends: 250 [2022-01-31 16:22:17,090 INFO L226 Difference]: Without dead ends: 250 [2022-01-31 16:22:17,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:17,091 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:17,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 576 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 400 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:22:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-31 16:22:17,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 237. [2022-01-31 16:22:17,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 232 states have internal predecessors, (357), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 361 transitions. [2022-01-31 16:22:17,097 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 361 transitions. Word has length 74 [2022-01-31 16:22:17,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:17,098 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 361 transitions. [2022-01-31 16:22:17,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:17,098 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 361 transitions. [2022-01-31 16:22:17,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-31 16:22:17,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:17,099 INFO L514 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] [2022-01-31 16:22:17,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:22:17,099 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash 725568825, now seen corresponding path program 1 times [2022-01-31 16:22:17,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:17,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130814542] [2022-01-31 16:22:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:17,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:17,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:17,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130814542] [2022-01-31 16:22:17,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130814542] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:17,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:17,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:17,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589740129] [2022-01-31 16:22:17,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:17,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:17,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:17,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:17,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:17,212 INFO L87 Difference]: Start difference. First operand 237 states and 361 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:19,227 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 [] [2022-01-31 16:22:19,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:19,572 INFO L93 Difference]: Finished difference Result 255 states and 384 transitions. [2022-01-31 16:22:19,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:19,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 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 74 [2022-01-31 16:22:19,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:19,573 INFO L225 Difference]: With dead ends: 255 [2022-01-31 16:22:19,573 INFO L226 Difference]: Without dead ends: 255 [2022-01-31 16:22:19,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:19,574 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 35 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:19,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 509 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:22:19,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-01-31 16:22:19,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2022-01-31 16:22:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.5344827586206897) internal successors, (356), 232 states have internal predecessors, (356), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:19,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 360 transitions. [2022-01-31 16:22:19,579 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 360 transitions. Word has length 74 [2022-01-31 16:22:19,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:19,579 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 360 transitions. [2022-01-31 16:22:19,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:19,580 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 360 transitions. [2022-01-31 16:22:19,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 16:22:19,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:19,580 INFO L514 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] [2022-01-31 16:22:19,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:22:19,581 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:19,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:19,581 INFO L85 PathProgramCache]: Analyzing trace with hash -409272786, now seen corresponding path program 1 times [2022-01-31 16:22:19,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:19,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648927243] [2022-01-31 16:22:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:19,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-31 16:22:19,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:19,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648927243] [2022-01-31 16:22:19,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648927243] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:19,698 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:19,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:22:19,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321885968] [2022-01-31 16:22:19,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:19,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:22:19,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:22:19,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:19,699 INFO L87 Difference]: Start difference. First operand 237 states and 360 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:21,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:22,989 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 [] [2022-01-31 16:22:23,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:23,678 INFO L93 Difference]: Finished difference Result 246 states and 371 transitions. [2022-01-31 16:22:23,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:22:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 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 75 [2022-01-31 16:22:23,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:23,679 INFO L225 Difference]: With dead ends: 246 [2022-01-31 16:22:23,679 INFO L226 Difference]: Without dead ends: 246 [2022-01-31 16:22:23,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:22:23,683 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 3 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:23,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 633 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:22:23,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-01-31 16:22:23,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-01-31 16:22:23,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5228215767634854) internal successors, (367), 241 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:23,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 371 transitions. [2022-01-31 16:22:23,687 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 371 transitions. Word has length 75 [2022-01-31 16:22:23,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:23,687 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 371 transitions. [2022-01-31 16:22:23,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 371 transitions. [2022-01-31 16:22:23,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-31 16:22:23,688 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:23,688 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:23,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:22:23,689 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:23,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:23,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2074107470, now seen corresponding path program 1 times [2022-01-31 16:22:23,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:23,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595918635] [2022-01-31 16:22:23,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:23,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:23,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:23,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595918635] [2022-01-31 16:22:23,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595918635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:23,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:23,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:23,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748399448] [2022-01-31 16:22:23,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:23,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:23,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:23,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:23,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:23,797 INFO L87 Difference]: Start difference. First operand 246 states and 371 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:26,655 INFO L93 Difference]: Finished difference Result 273 states and 405 transitions. [2022-01-31 16:22:26,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 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 75 [2022-01-31 16:22:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:26,657 INFO L225 Difference]: With dead ends: 273 [2022-01-31 16:22:26,657 INFO L226 Difference]: Without dead ends: 273 [2022-01-31 16:22:26,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:26,658 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:26,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 509 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:22:26,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-01-31 16:22:26,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 246. [2022-01-31 16:22:26,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5186721991701244) internal successors, (366), 241 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 370 transitions. [2022-01-31 16:22:26,666 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 370 transitions. Word has length 75 [2022-01-31 16:22:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:26,666 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 370 transitions. [2022-01-31 16:22:26,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 370 transitions. [2022-01-31 16:22:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-31 16:22:26,667 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:26,667 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:26,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:22:26,668 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash -2128965550, now seen corresponding path program 1 times [2022-01-31 16:22:26,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:26,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965105032] [2022-01-31 16:22:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:26,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:26,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:26,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965105032] [2022-01-31 16:22:26,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965105032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:26,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:26,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:26,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52613118] [2022-01-31 16:22:26,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:26,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:26,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:26,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:26,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:26,807 INFO L87 Difference]: Start difference. First operand 246 states and 370 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:30,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:30,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:30,649 INFO L93 Difference]: Finished difference Result 353 states and 527 transitions. [2022-01-31 16:22:30,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:30,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 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 77 [2022-01-31 16:22:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:30,651 INFO L225 Difference]: With dead ends: 353 [2022-01-31 16:22:30,651 INFO L226 Difference]: Without dead ends: 353 [2022-01-31 16:22:30,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:30,652 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 144 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:30,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:22:30,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-31 16:22:30,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 246. [2022-01-31 16:22:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.5020746887966805) internal successors, (362), 241 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 366 transitions. [2022-01-31 16:22:30,658 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 366 transitions. Word has length 77 [2022-01-31 16:22:30,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:30,658 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 366 transitions. [2022-01-31 16:22:30,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 366 transitions. [2022-01-31 16:22:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-31 16:22:30,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:30,659 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:30,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:22:30,659 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:30,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:30,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1952802305, now seen corresponding path program 1 times [2022-01-31 16:22:30,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:30,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938178457] [2022-01-31 16:22:30,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:30,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:22:30,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938178457] [2022-01-31 16:22:30,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938178457] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:30,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:30,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:30,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334559330] [2022-01-31 16:22:30,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:30,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:30,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:30,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:30,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:30,771 INFO L87 Difference]: Start difference. First operand 246 states and 366 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:33,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:34,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:35,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:35,301 INFO L93 Difference]: Finished difference Result 353 states and 523 transitions. [2022-01-31 16:22:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:35,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 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 78 [2022-01-31 16:22:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:35,302 INFO L225 Difference]: With dead ends: 353 [2022-01-31 16:22:35,302 INFO L226 Difference]: Without dead ends: 353 [2022-01-31 16:22:35,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:35,303 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 142 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:35,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 344 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:22:35,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-01-31 16:22:35,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 246. [2022-01-31 16:22:35,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 241 states have (on average 1.4854771784232366) internal successors, (358), 241 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) [2022-01-31 16:22:35,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 362 transitions. [2022-01-31 16:22:35,309 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 362 transitions. Word has length 78 [2022-01-31 16:22:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:35,310 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 362 transitions. [2022-01-31 16:22:35,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 362 transitions. [2022-01-31 16:22:35,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 16:22:35,311 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:35,311 INFO L514 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] [2022-01-31 16:22:35,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:22:35,311 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:35,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:35,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2041710414, now seen corresponding path program 1 times [2022-01-31 16:22:35,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:35,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232498147] [2022-01-31 16:22:35,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:35,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:35,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:35,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:35,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232498147] [2022-01-31 16:22:35,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232498147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:35,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:35,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:35,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892018417] [2022-01-31 16:22:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:35,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:35,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:35,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:35,445 INFO L87 Difference]: Start difference. First operand 246 states and 362 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:36,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:38,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:40,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:41,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:41,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:41,941 INFO L93 Difference]: Finished difference Result 351 states and 513 transitions. [2022-01-31 16:22:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:41,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 [2022-01-31 16:22:41,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:41,943 INFO L225 Difference]: With dead ends: 351 [2022-01-31 16:22:41,943 INFO L226 Difference]: Without dead ends: 351 [2022-01-31 16:22:41,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:41,944 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 86 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:41,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 513 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 16:22:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-01-31 16:22:41,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 277. [2022-01-31 16:22:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.4926470588235294) internal successors, (406), 272 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 410 transitions. [2022-01-31 16:22:41,950 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 410 transitions. Word has length 82 [2022-01-31 16:22:41,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:41,950 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 410 transitions. [2022-01-31 16:22:41,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 410 transitions. [2022-01-31 16:22:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-31 16:22:41,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:41,951 INFO L514 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] [2022-01-31 16:22:41,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:22:41,951 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:41,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:41,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1016218415, now seen corresponding path program 1 times [2022-01-31 16:22:41,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:41,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399541516] [2022-01-31 16:22:41,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:41,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:42,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:42,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:42,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399541516] [2022-01-31 16:22:42,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399541516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:42,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:42,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:42,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883133245] [2022-01-31 16:22:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:42,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:42,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:42,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:42,056 INFO L87 Difference]: Start difference. First operand 277 states and 410 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:43,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:46,050 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:46,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:46,498 INFO L93 Difference]: Finished difference Result 335 states and 491 transitions. [2022-01-31 16:22:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:46,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 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 [2022-01-31 16:22:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:46,500 INFO L225 Difference]: With dead ends: 335 [2022-01-31 16:22:46,500 INFO L226 Difference]: Without dead ends: 335 [2022-01-31 16:22:46,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:46,501 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 37 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:46,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 605 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:22:46,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2022-01-31 16:22:46,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 301. [2022-01-31 16:22:46,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4966216216216217) internal successors, (443), 296 states have internal predecessors, (443), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:46,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 447 transitions. [2022-01-31 16:22:46,507 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 447 transitions. Word has length 82 [2022-01-31 16:22:46,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:46,507 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 447 transitions. [2022-01-31 16:22:46,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:46,508 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 447 transitions. [2022-01-31 16:22:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-31 16:22:46,509 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:46,509 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:22:46,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:22:46,509 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:46,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:46,509 INFO L85 PathProgramCache]: Analyzing trace with hash -358305085, now seen corresponding path program 1 times [2022-01-31 16:22:46,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:46,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494354160] [2022-01-31 16:22:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:46,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:46,619 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:46,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:46,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494354160] [2022-01-31 16:22:46,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494354160] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:46,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:46,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:46,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892217123] [2022-01-31 16:22:46,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:46,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:46,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:46,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:46,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:46,620 INFO L87 Difference]: Start difference. First operand 301 states and 447 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:48,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:50,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:52,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:53,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:53,393 INFO L93 Difference]: Finished difference Result 398 states and 590 transitions. [2022-01-31 16:22:53,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:53,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-01-31 16:22:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:53,395 INFO L225 Difference]: With dead ends: 398 [2022-01-31 16:22:53,395 INFO L226 Difference]: Without dead ends: 398 [2022-01-31 16:22:53,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:53,395 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 145 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:53,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 346 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-01-31 16:22:53,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-01-31 16:22:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 301. [2022-01-31 16:22:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 296 states have (on average 1.4763513513513513) internal successors, (437), 296 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:53,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 441 transitions. [2022-01-31 16:22:53,402 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 441 transitions. Word has length 87 [2022-01-31 16:22:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:53,402 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 441 transitions. [2022-01-31 16:22:53,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:53,403 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 441 transitions. [2022-01-31 16:22:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-31 16:22:53,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:53,404 INFO L514 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] [2022-01-31 16:22:53,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:22:53,404 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:53,404 INFO L85 PathProgramCache]: Analyzing trace with hash -627016711, now seen corresponding path program 1 times [2022-01-31 16:22:53,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:53,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112956251] [2022-01-31 16:22:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:53,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:53,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:53,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:53,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112956251] [2022-01-31 16:22:53,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112956251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:53,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:53,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:53,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256665282] [2022-01-31 16:22:53,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:53,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:53,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:53,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:53,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:53,514 INFO L87 Difference]: Start difference. First operand 301 states and 441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:54,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:56,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:58,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:22:59,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:22:59,816 INFO L93 Difference]: Finished difference Result 427 states and 634 transitions. [2022-01-31 16:22:59,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:22:59,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-01-31 16:22:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:22:59,818 INFO L225 Difference]: With dead ends: 427 [2022-01-31 16:22:59,818 INFO L226 Difference]: Without dead ends: 427 [2022-01-31 16:22:59,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:22:59,819 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:22:59,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-01-31 16:22:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-01-31 16:22:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 351. [2022-01-31 16:22:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 346 states have (on average 1.5115606936416186) internal successors, (523), 346 states have internal predecessors, (523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:59,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 527 transitions. [2022-01-31 16:22:59,826 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 527 transitions. Word has length 87 [2022-01-31 16:22:59,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:22:59,827 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 527 transitions. [2022-01-31 16:22:59,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:22:59,827 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 527 transitions. [2022-01-31 16:22:59,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-31 16:22:59,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:22:59,828 INFO L514 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] [2022-01-31 16:22:59,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:22:59,829 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:22:59,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:22:59,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2038270526, now seen corresponding path program 1 times [2022-01-31 16:22:59,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:22:59,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194687027] [2022-01-31 16:22:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:22:59,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:22:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:22:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:22:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:22:59,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:22:59,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194687027] [2022-01-31 16:22:59,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194687027] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:22:59,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:22:59,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:22:59,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749640234] [2022-01-31 16:22:59,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:22:59,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:22:59,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:22:59,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:22:59,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:22:59,935 INFO L87 Difference]: Start difference. First operand 351 states and 527 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:02,621 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 [] [2022-01-31 16:23:03,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:03,084 INFO L93 Difference]: Finished difference Result 409 states and 609 transitions. [2022-01-31 16:23:03,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-01-31 16:23:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:03,089 INFO L225 Difference]: With dead ends: 409 [2022-01-31 16:23:03,089 INFO L226 Difference]: Without dead ends: 409 [2022-01-31 16:23:03,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:03,091 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 67 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:03,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 483 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:23:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-01-31 16:23:03,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 362. [2022-01-31 16:23:03,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5210084033613445) internal successors, (543), 357 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 547 transitions. [2022-01-31 16:23:03,098 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 547 transitions. Word has length 88 [2022-01-31 16:23:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:03,098 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 547 transitions. [2022-01-31 16:23:03,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 547 transitions. [2022-01-31 16:23:03,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-31 16:23:03,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:03,100 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:23:03,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:23:03,100 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:03,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:03,100 INFO L85 PathProgramCache]: Analyzing trace with hash -987048744, now seen corresponding path program 1 times [2022-01-31 16:23:03,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:03,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774435860] [2022-01-31 16:23:03,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:03,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:23:03,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:03,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774435860] [2022-01-31 16:23:03,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774435860] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:03,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:03,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:03,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318022624] [2022-01-31 16:23:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:03,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:03,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:03,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:03,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:03,239 INFO L87 Difference]: Start difference. First operand 362 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:04,262 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 [] [2022-01-31 16:23:06,657 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 [] [2022-01-31 16:23:07,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:07,545 INFO L93 Difference]: Finished difference Result 449 states and 671 transitions. [2022-01-31 16:23:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:07,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-01-31 16:23:07,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:07,547 INFO L225 Difference]: With dead ends: 449 [2022-01-31 16:23:07,547 INFO L226 Difference]: Without dead ends: 449 [2022-01-31 16:23:07,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:07,548 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 138 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:07,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 348 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:23:07,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-01-31 16:23:07,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 362. [2022-01-31 16:23:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.5070028011204482) internal successors, (538), 357 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 542 transitions. [2022-01-31 16:23:07,555 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 542 transitions. Word has length 96 [2022-01-31 16:23:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:07,555 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 542 transitions. [2022-01-31 16:23:07,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 542 transitions. [2022-01-31 16:23:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-31 16:23:07,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:07,557 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:07,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:23:07,557 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 522570383, now seen corresponding path program 1 times [2022-01-31 16:23:07,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:07,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562869375] [2022-01-31 16:23:07,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:07,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:07,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:23:07,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:07,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562869375] [2022-01-31 16:23:07,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562869375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:07,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:07,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:07,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653890586] [2022-01-31 16:23:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:07,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:07,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:07,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:07,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:07,675 INFO L87 Difference]: Start difference. First operand 362 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:10,353 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 [] [2022-01-31 16:23:12,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:14,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:14,833 INFO L93 Difference]: Finished difference Result 439 states and 652 transitions. [2022-01-31 16:23:14,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:14,833 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 97 [2022-01-31 16:23:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:14,835 INFO L225 Difference]: With dead ends: 439 [2022-01-31 16:23:14,835 INFO L226 Difference]: Without dead ends: 439 [2022-01-31 16:23:14,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:14,836 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 135 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 54 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:14,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 368 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 460 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-01-31 16:23:14,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-01-31 16:23:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 362. [2022-01-31 16:23:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4901960784313726) internal successors, (532), 357 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 536 transitions. [2022-01-31 16:23:14,842 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 536 transitions. Word has length 97 [2022-01-31 16:23:14,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:14,842 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 536 transitions. [2022-01-31 16:23:14,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:14,842 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 536 transitions. [2022-01-31 16:23:14,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:23:14,843 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:14,843 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:23:14,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:23:14,844 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 39070128, now seen corresponding path program 1 times [2022-01-31 16:23:14,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:14,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192680887] [2022-01-31 16:23:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:14,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:23:14,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:14,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192680887] [2022-01-31 16:23:14,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192680887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:14,955 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:14,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:14,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571733651] [2022-01-31 16:23:14,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:14,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:14,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:14,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:14,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:14,957 INFO L87 Difference]: Start difference. First operand 362 states and 536 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:16,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:18,792 INFO L93 Difference]: Finished difference Result 397 states and 582 transitions. [2022-01-31 16:23:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:18,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-01-31 16:23:18,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:18,794 INFO L225 Difference]: With dead ends: 397 [2022-01-31 16:23:18,794 INFO L226 Difference]: Without dead ends: 397 [2022-01-31 16:23:18,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:18,795 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 73 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:18,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 515 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:23:18,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-01-31 16:23:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 362. [2022-01-31 16:23:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 357 states have (on average 1.4873949579831933) internal successors, (531), 357 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:18,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 535 transitions. [2022-01-31 16:23:18,801 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 535 transitions. Word has length 104 [2022-01-31 16:23:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:18,802 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 535 transitions. [2022-01-31 16:23:18,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 535 transitions. [2022-01-31 16:23:18,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:23:18,803 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:18,803 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:23:18,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:23:18,803 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:18,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:18,804 INFO L85 PathProgramCache]: Analyzing trace with hash 59407503, now seen corresponding path program 1 times [2022-01-31 16:23:18,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365154572] [2022-01-31 16:23:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:18,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:18,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:23:18,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:18,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365154572] [2022-01-31 16:23:18,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365154572] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:18,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:18,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:18,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606812934] [2022-01-31 16:23:18,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:18,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:18,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:18,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:18,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:18,911 INFO L87 Difference]: Start difference. First operand 362 states and 535 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:20,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:21,205 INFO L93 Difference]: Finished difference Result 691 states and 1024 transitions. [2022-01-31 16:23:21,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:21,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 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 104 [2022-01-31 16:23:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:21,208 INFO L225 Difference]: With dead ends: 691 [2022-01-31 16:23:21,208 INFO L226 Difference]: Without dead ends: 691 [2022-01-31 16:23:21,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:21,209 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:21,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:23:21,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-01-31 16:23:21,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2022-01-31 16:23:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 686 states have (on average 1.4868804664723032) internal successors, (1020), 686 states have internal predecessors, (1020), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 1024 transitions. [2022-01-31 16:23:21,218 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 1024 transitions. Word has length 104 [2022-01-31 16:23:21,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:21,218 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 1024 transitions. [2022-01-31 16:23:21,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 1024 transitions. [2022-01-31 16:23:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:23:21,220 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:21,220 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:23:21,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:23:21,220 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1871211602, now seen corresponding path program 1 times [2022-01-31 16:23:21,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:21,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650663198] [2022-01-31 16:23:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:21,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:21,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 16:23:21,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:21,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650663198] [2022-01-31 16:23:21,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650663198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:21,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:21,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:21,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791025115] [2022-01-31 16:23:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:21,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:21,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:21,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:21,319 INFO L87 Difference]: Start difference. First operand 691 states and 1024 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:23,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:25,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:25,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:25,772 INFO L93 Difference]: Finished difference Result 718 states and 1059 transitions. [2022-01-31 16:23:25,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:25,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-01-31 16:23:25,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:25,775 INFO L225 Difference]: With dead ends: 718 [2022-01-31 16:23:25,775 INFO L226 Difference]: Without dead ends: 718 [2022-01-31 16:23:25,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:25,776 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:25,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 417 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:23:25,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-01-31 16:23:25,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2022-01-31 16:23:25,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 713 states have (on average 1.4796633941093968) internal successors, (1055), 713 states have internal predecessors, (1055), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:25,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1059 transitions. [2022-01-31 16:23:25,786 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1059 transitions. Word has length 104 [2022-01-31 16:23:25,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:25,786 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 1059 transitions. [2022-01-31 16:23:25,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:25,786 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1059 transitions. [2022-01-31 16:23:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-31 16:23:25,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:25,788 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:23:25,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:23:25,788 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:25,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:25,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1451694771, now seen corresponding path program 1 times [2022-01-31 16:23:25,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:25,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091603456] [2022-01-31 16:23:25,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:25,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-01-31 16:23:25,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:25,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091603456] [2022-01-31 16:23:25,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091603456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:25,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:25,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:25,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019236735] [2022-01-31 16:23:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:25,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:25,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:25,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:25,880 INFO L87 Difference]: Start difference. First operand 718 states and 1059 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:28,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:28,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:28,823 INFO L93 Difference]: Finished difference Result 720 states and 1061 transitions. [2022-01-31 16:23:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 104 [2022-01-31 16:23:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:28,825 INFO L225 Difference]: With dead ends: 720 [2022-01-31 16:23:28,825 INFO L226 Difference]: Without dead ends: 720 [2022-01-31 16:23:28,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:28,826 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:28,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 396 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:23:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-01-31 16:23:28,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 720. [2022-01-31 16:23:28,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 715 states have (on average 1.4783216783216784) internal successors, (1057), 715 states have internal predecessors, (1057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:28,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1061 transitions. [2022-01-31 16:23:28,835 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1061 transitions. Word has length 104 [2022-01-31 16:23:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:28,836 INFO L470 AbstractCegarLoop]: Abstraction has 720 states and 1061 transitions. [2022-01-31 16:23:28,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1061 transitions. [2022-01-31 16:23:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-31 16:23:28,837 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:28,837 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-01-31 16:23:28,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:23:28,837 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:28,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2030270456, now seen corresponding path program 1 times [2022-01-31 16:23:28,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:28,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274722022] [2022-01-31 16:23:28,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:28,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:28,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:28,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274722022] [2022-01-31 16:23:28,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274722022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:28,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:28,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:28,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39432200] [2022-01-31 16:23:28,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:28,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:28,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:28,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:28,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:28,963 INFO L87 Difference]: Start difference. First operand 720 states and 1061 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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) [2022-01-31 16:23:30,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:32,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:32,846 INFO L93 Difference]: Finished difference Result 1056 states and 1564 transitions. [2022-01-31 16:23:32,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:32,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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 106 [2022-01-31 16:23:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:32,850 INFO L225 Difference]: With dead ends: 1056 [2022-01-31 16:23:32,850 INFO L226 Difference]: Without dead ends: 1056 [2022-01-31 16:23:32,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:32,850 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:32,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 379 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:23:32,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2022-01-31 16:23:32,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1054. [2022-01-31 16:23:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1049 states have (on average 1.4861773117254529) internal successors, (1559), 1049 states have internal predecessors, (1559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:32,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1563 transitions. [2022-01-31 16:23:32,866 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1563 transitions. Word has length 106 [2022-01-31 16:23:32,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:32,866 INFO L470 AbstractCegarLoop]: Abstraction has 1054 states and 1563 transitions. [2022-01-31 16:23:32,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 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) [2022-01-31 16:23:32,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1563 transitions. [2022-01-31 16:23:32,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:23:32,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:32,868 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:32,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:23:32,868 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:32,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:32,869 INFO L85 PathProgramCache]: Analyzing trace with hash 538755348, now seen corresponding path program 1 times [2022-01-31 16:23:32,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:32,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251937742] [2022-01-31 16:23:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:32,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:32,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:32,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:32,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251937742] [2022-01-31 16:23:32,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251937742] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:32,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:32,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:32,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807844114] [2022-01-31 16:23:32,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:32,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:32,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:32,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:32,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:32,982 INFO L87 Difference]: Start difference. First operand 1054 states and 1563 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:33,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:36,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:36,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:36,816 INFO L93 Difference]: Finished difference Result 1390 states and 2052 transitions. [2022-01-31 16:23:36,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:36,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2022-01-31 16:23:36,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:36,820 INFO L225 Difference]: With dead ends: 1390 [2022-01-31 16:23:36,820 INFO L226 Difference]: Without dead ends: 1390 [2022-01-31 16:23:36,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:36,821 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:36,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 574 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:23:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-01-31 16:23:36,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1388. [2022-01-31 16:23:36,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1383 states have (on average 1.480115690527838) internal successors, (2047), 1383 states have internal predecessors, (2047), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:36,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 2051 transitions. [2022-01-31 16:23:36,839 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 2051 transitions. Word has length 112 [2022-01-31 16:23:36,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:36,839 INFO L470 AbstractCegarLoop]: Abstraction has 1388 states and 2051 transitions. [2022-01-31 16:23:36,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 2051 transitions. [2022-01-31 16:23:36,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-31 16:23:36,842 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:36,842 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:36,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:23:36,842 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:36,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:36,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1278673933, now seen corresponding path program 1 times [2022-01-31 16:23:36,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:36,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692240741] [2022-01-31 16:23:36,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:36,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:36,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:36,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692240741] [2022-01-31 16:23:36,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692240741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:36,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:36,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:36,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67930050] [2022-01-31 16:23:36,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:36,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:36,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:36,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:36,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:36,972 INFO L87 Difference]: Start difference. First operand 1388 states and 2051 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:38,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:40,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:40,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:40,603 INFO L93 Difference]: Finished difference Result 1690 states and 2489 transitions. [2022-01-31 16:23:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:40,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 129 [2022-01-31 16:23:40,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:40,608 INFO L225 Difference]: With dead ends: 1690 [2022-01-31 16:23:40,608 INFO L226 Difference]: Without dead ends: 1690 [2022-01-31 16:23:40,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:40,609 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 105 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:40,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 380 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:23:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-01-31 16:23:40,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1392. [2022-01-31 16:23:40,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1387 states have (on average 1.4844989185291997) internal successors, (2059), 1387 states have internal predecessors, (2059), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2063 transitions. [2022-01-31 16:23:40,629 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2063 transitions. Word has length 129 [2022-01-31 16:23:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:40,629 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 2063 transitions. [2022-01-31 16:23:40,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:40,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2063 transitions. [2022-01-31 16:23:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-31 16:23:40,631 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:40,632 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:23:40,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:23:40,632 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:40,632 INFO L85 PathProgramCache]: Analyzing trace with hash -224082698, now seen corresponding path program 1 times [2022-01-31 16:23:40,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:40,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218396066] [2022-01-31 16:23:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:40,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:40,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-01-31 16:23:40,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:40,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218396066] [2022-01-31 16:23:40,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218396066] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:40,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:40,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:23:40,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141321281] [2022-01-31 16:23:40,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:40,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:23:40,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:40,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:23:40,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:40,746 INFO L87 Difference]: Start difference. First operand 1392 states and 2063 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:42,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:44,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:46,042 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 [] [2022-01-31 16:23:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:46,285 INFO L93 Difference]: Finished difference Result 1729 states and 2563 transitions. [2022-01-31 16:23:46,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:23:46,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 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 134 [2022-01-31 16:23:46,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:46,289 INFO L225 Difference]: With dead ends: 1729 [2022-01-31 16:23:46,289 INFO L226 Difference]: Without dead ends: 1729 [2022-01-31 16:23:46,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:23:46,290 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:46,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 378 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 244 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 16:23:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2022-01-31 16:23:46,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1727. [2022-01-31 16:23:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1722 states have (on average 1.4854819976771196) internal successors, (2558), 1722 states have internal predecessors, (2558), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:46,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2562 transitions. [2022-01-31 16:23:46,315 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2562 transitions. Word has length 134 [2022-01-31 16:23:46,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:46,315 INFO L470 AbstractCegarLoop]: Abstraction has 1727 states and 2562 transitions. [2022-01-31 16:23:46,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:46,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2562 transitions. [2022-01-31 16:23:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-31 16:23:46,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:46,318 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 16:23:46,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:23:46,319 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:46,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1937528124, now seen corresponding path program 1 times [2022-01-31 16:23:46,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:46,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943913383] [2022-01-31 16:23:46,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:46,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:46,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:46,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943913383] [2022-01-31 16:23:46,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943913383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:46,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:46,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:46,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078882936] [2022-01-31 16:23:46,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:46,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:46,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:46,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:46,469 INFO L87 Difference]: Start difference. First operand 1727 states and 2562 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) [2022-01-31 16:23:48,915 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 [] [2022-01-31 16:23:50,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:52,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:53,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:53,399 INFO L93 Difference]: Finished difference Result 2424 states and 3603 transitions. [2022-01-31 16:23:53,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:53,399 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 157 [2022-01-31 16:23:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:53,404 INFO L225 Difference]: With dead ends: 2424 [2022-01-31 16:23:53,405 INFO L226 Difference]: Without dead ends: 2424 [2022-01-31 16:23:53,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:53,405 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 111 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:53,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 378 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-01-31 16:23:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-01-31 16:23:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2047. [2022-01-31 16:23:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2047 states, 2042 states have (on average 1.4926542605288933) internal successors, (3048), 2042 states have internal predecessors, (3048), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:53,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 3052 transitions. [2022-01-31 16:23:53,432 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 3052 transitions. Word has length 157 [2022-01-31 16:23:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:53,433 INFO L470 AbstractCegarLoop]: Abstraction has 2047 states and 3052 transitions. [2022-01-31 16:23:53,433 INFO L471 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) [2022-01-31 16:23:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 3052 transitions. [2022-01-31 16:23:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-01-31 16:23:53,436 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:53,436 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 16:23:53,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:23:53,436 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:53,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:53,437 INFO L85 PathProgramCache]: Analyzing trace with hash 345707707, now seen corresponding path program 1 times [2022-01-31 16:23:53,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:53,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751354300] [2022-01-31 16:23:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:53,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:53,552 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:53,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:53,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751354300] [2022-01-31 16:23:53,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751354300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:53,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:53,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:53,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159634368] [2022-01-31 16:23:53,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:53,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:53,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:53,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:53,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:53,554 INFO L87 Difference]: Start difference. First operand 2047 states and 3052 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:56,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:58,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:23:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:23:59,751 INFO L93 Difference]: Finished difference Result 2370 states and 3516 transitions. [2022-01-31 16:23:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:23:59,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 162 [2022-01-31 16:23:59,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:23:59,757 INFO L225 Difference]: With dead ends: 2370 [2022-01-31 16:23:59,758 INFO L226 Difference]: Without dead ends: 2370 [2022-01-31 16:23:59,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:23:59,758 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 68 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:23:59,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 642 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 578 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:23:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2022-01-31 16:23:59,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2195. [2022-01-31 16:23:59,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4977168949771689) internal successors, (3280), 2190 states have internal predecessors, (3280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:59,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3284 transitions. [2022-01-31 16:23:59,787 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3284 transitions. Word has length 162 [2022-01-31 16:23:59,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:23:59,787 INFO L470 AbstractCegarLoop]: Abstraction has 2195 states and 3284 transitions. [2022-01-31 16:23:59,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:23:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3284 transitions. [2022-01-31 16:23:59,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-31 16:23:59,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:23:59,791 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 16:23:59,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:23:59,791 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:23:59,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:23:59,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1703474583, now seen corresponding path program 1 times [2022-01-31 16:23:59,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:23:59,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424021379] [2022-01-31 16:23:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:23:59,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:23:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:23:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:23:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:23:59,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:23:59,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424021379] [2022-01-31 16:23:59,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424021379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:23:59,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:23:59,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:23:59,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246772958] [2022-01-31 16:23:59,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:23:59,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:23:59,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:23:59,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:23:59,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:23:59,922 INFO L87 Difference]: Start difference. First operand 2195 states and 3284 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) [2022-01-31 16:24:01,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:02,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:04,967 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 [] [2022-01-31 16:24:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:06,160 INFO L93 Difference]: Finished difference Result 2512 states and 3705 transitions. [2022-01-31 16:24:06,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:06,160 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 163 [2022-01-31 16:24:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:06,168 INFO L225 Difference]: With dead ends: 2512 [2022-01-31 16:24:06,168 INFO L226 Difference]: Without dead ends: 2512 [2022-01-31 16:24:06,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:06,169 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:06,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 366 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:24:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-01-31 16:24:06,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2195. [2022-01-31 16:24:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 2190 states have (on average 1.4931506849315068) internal successors, (3270), 2190 states have internal predecessors, (3270), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:06,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3274 transitions. [2022-01-31 16:24:06,198 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3274 transitions. Word has length 163 [2022-01-31 16:24:06,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:06,199 INFO L470 AbstractCegarLoop]: Abstraction has 2195 states and 3274 transitions. [2022-01-31 16:24:06,199 INFO L471 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) [2022-01-31 16:24:06,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3274 transitions. [2022-01-31 16:24:06,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-31 16:24:06,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:06,202 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 16:24:06,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:24:06,203 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:06,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:06,203 INFO L85 PathProgramCache]: Analyzing trace with hash 539016946, now seen corresponding path program 1 times [2022-01-31 16:24:06,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:06,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601759301] [2022-01-31 16:24:06,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:06,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-01-31 16:24:06,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:06,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601759301] [2022-01-31 16:24:06,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601759301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:06,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:06,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:24:06,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459834737] [2022-01-31 16:24:06,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:06,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:06,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:06,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:06,360 INFO L87 Difference]: Start difference. First operand 2195 states and 3274 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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) [2022-01-31 16:24:08,380 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 [] [2022-01-31 16:24:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:08,811 INFO L93 Difference]: Finished difference Result 2591 states and 3864 transitions. [2022-01-31 16:24:08,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:08,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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 171 [2022-01-31 16:24:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:08,819 INFO L225 Difference]: With dead ends: 2591 [2022-01-31 16:24:08,819 INFO L226 Difference]: Without dead ends: 2591 [2022-01-31 16:24:08,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:08,819 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 143 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:08,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 579 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:24:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2022-01-31 16:24:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 2591. [2022-01-31 16:24:08,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 2586 states have (on average 1.4926527455529777) internal successors, (3860), 2586 states have internal predecessors, (3860), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3864 transitions. [2022-01-31 16:24:08,853 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3864 transitions. Word has length 171 [2022-01-31 16:24:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:08,853 INFO L470 AbstractCegarLoop]: Abstraction has 2591 states and 3864 transitions. [2022-01-31 16:24:08,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 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) [2022-01-31 16:24:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3864 transitions. [2022-01-31 16:24:08,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-01-31 16:24:08,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:08,857 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-31 16:24:08,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:24:08,858 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:08,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:08,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1396643341, now seen corresponding path program 1 times [2022-01-31 16:24:08,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:08,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929666256] [2022-01-31 16:24:08,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:08,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:24:08,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:08,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929666256] [2022-01-31 16:24:08,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929666256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:08,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:08,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:24:08,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736762546] [2022-01-31 16:24:08,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:08,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:08,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:08,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:08,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:08,976 INFO L87 Difference]: Start difference. First operand 2591 states and 3864 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:10,339 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:12,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:12,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:12,985 INFO L93 Difference]: Finished difference Result 2991 states and 4460 transitions. [2022-01-31 16:24:12,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:12,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 171 [2022-01-31 16:24:12,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:13,004 INFO L225 Difference]: With dead ends: 2991 [2022-01-31 16:24:13,004 INFO L226 Difference]: Without dead ends: 2991 [2022-01-31 16:24:13,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:24:13,005 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:13,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 574 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:24:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2991 states. [2022-01-31 16:24:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2991 to 2991. [2022-01-31 16:24:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2986 states have (on average 1.492297387809779) internal successors, (4456), 2986 states have internal predecessors, (4456), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:13,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 4460 transitions. [2022-01-31 16:24:13,048 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 4460 transitions. Word has length 171 [2022-01-31 16:24:13,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:13,048 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 4460 transitions. [2022-01-31 16:24:13,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 4460 transitions. [2022-01-31 16:24:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-31 16:24:13,053 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:13,053 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:13,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:24:13,053 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash -649350432, now seen corresponding path program 1 times [2022-01-31 16:24:13,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:13,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696754817] [2022-01-31 16:24:13,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:13,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:13,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-01-31 16:24:13,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:13,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696754817] [2022-01-31 16:24:13,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696754817] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:13,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:13,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:13,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998461975] [2022-01-31 16:24:13,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:13,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:13,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:13,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:13,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:13,192 INFO L87 Difference]: Start difference. First operand 2991 states and 4460 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:14,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:16,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:19,021 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 [] [2022-01-31 16:24:19,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:19,555 INFO L93 Difference]: Finished difference Result 3510 states and 5177 transitions. [2022-01-31 16:24:19,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:19,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-01-31 16:24:19,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:19,562 INFO L225 Difference]: With dead ends: 3510 [2022-01-31 16:24:19,563 INFO L226 Difference]: Without dead ends: 3510 [2022-01-31 16:24:19,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:19,563 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 103 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 45 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:19,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 514 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 541 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-01-31 16:24:19,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3510 states. [2022-01-31 16:24:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3510 to 3075. [2022-01-31 16:24:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3075 states, 3070 states have (on average 1.4947882736156353) internal successors, (4589), 3070 states have internal predecessors, (4589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:19,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 4593 transitions. [2022-01-31 16:24:19,600 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 4593 transitions. Word has length 178 [2022-01-31 16:24:19,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:19,600 INFO L470 AbstractCegarLoop]: Abstraction has 3075 states and 4593 transitions. [2022-01-31 16:24:19,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:19,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 4593 transitions. [2022-01-31 16:24:19,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-31 16:24:19,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:19,604 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:19,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:24:19,604 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:19,605 INFO L85 PathProgramCache]: Analyzing trace with hash 773618050, now seen corresponding path program 1 times [2022-01-31 16:24:19,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:19,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922258963] [2022-01-31 16:24:19,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:19,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:19,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-01-31 16:24:19,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:19,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922258963] [2022-01-31 16:24:19,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922258963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:19,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:19,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:19,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773717611] [2022-01-31 16:24:19,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:19,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:19,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:19,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:19,734 INFO L87 Difference]: Start difference. First operand 3075 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:21,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:23,808 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 [] [2022-01-31 16:24:25,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:25,021 INFO L93 Difference]: Finished difference Result 3517 states and 5184 transitions. [2022-01-31 16:24:25,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:25,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-01-31 16:24:25,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:25,026 INFO L225 Difference]: With dead ends: 3517 [2022-01-31 16:24:25,026 INFO L226 Difference]: Without dead ends: 3517 [2022-01-31 16:24:25,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:25,027 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 102 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:25,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 366 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-01-31 16:24:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2022-01-31 16:24:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3089. [2022-01-31 16:24:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3084 states have (on average 1.4948119325551232) internal successors, (4610), 3084 states have internal predecessors, (4610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4614 transitions. [2022-01-31 16:24:25,060 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4614 transitions. Word has length 179 [2022-01-31 16:24:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:25,061 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 4614 transitions. [2022-01-31 16:24:25,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4614 transitions. [2022-01-31 16:24:25,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-31 16:24:25,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:25,065 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:25,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:24:25,066 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:25,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:25,066 INFO L85 PathProgramCache]: Analyzing trace with hash -30989214, now seen corresponding path program 1 times [2022-01-31 16:24:25,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:25,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368201018] [2022-01-31 16:24:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:25,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:25,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:25,208 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-01-31 16:24:25,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:25,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368201018] [2022-01-31 16:24:25,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368201018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:25,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:25,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:25,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682970973] [2022-01-31 16:24:25,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:25,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:25,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:25,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:25,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:25,210 INFO L87 Difference]: Start difference. First operand 3089 states and 4614 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:26,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:28,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:30,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:31,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:31,390 INFO L93 Difference]: Finished difference Result 3445 states and 5093 transitions. [2022-01-31 16:24:31,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:31,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-01-31 16:24:31,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:31,395 INFO L225 Difference]: With dead ends: 3445 [2022-01-31 16:24:31,396 INFO L226 Difference]: Without dead ends: 3445 [2022-01-31 16:24:31,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:31,396 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 81 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:31,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 639 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 573 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:24:31,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2022-01-31 16:24:31,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3089. [2022-01-31 16:24:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3084 states have (on average 1.4925421530479897) internal successors, (4603), 3084 states have internal predecessors, (4603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4607 transitions. [2022-01-31 16:24:31,430 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4607 transitions. Word has length 200 [2022-01-31 16:24:31,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:31,430 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 4607 transitions. [2022-01-31 16:24:31,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4607 transitions. [2022-01-31 16:24:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-01-31 16:24:31,434 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:31,435 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:31,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:24:31,435 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:31,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:31,435 INFO L85 PathProgramCache]: Analyzing trace with hash 633065423, now seen corresponding path program 1 times [2022-01-31 16:24:31,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:31,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707521530] [2022-01-31 16:24:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:31,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-01-31 16:24:31,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:31,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707521530] [2022-01-31 16:24:31,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707521530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:31,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:31,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:31,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578064271] [2022-01-31 16:24:31,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:31,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:31,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:31,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:31,602 INFO L87 Difference]: Start difference. First operand 3089 states and 4607 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:34,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:36,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:37,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:37,367 INFO L93 Difference]: Finished difference Result 3517 states and 5124 transitions. [2022-01-31 16:24:37,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:37,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-01-31 16:24:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:37,374 INFO L225 Difference]: With dead ends: 3517 [2022-01-31 16:24:37,375 INFO L226 Difference]: Without dead ends: 3517 [2022-01-31 16:24:37,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:37,375 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 120 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:37,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 366 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 16:24:37,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2022-01-31 16:24:37,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3089. [2022-01-31 16:24:37,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3084 states have (on average 1.4753566796368354) internal successors, (4550), 3084 states have internal predecessors, (4550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4554 transitions. [2022-01-31 16:24:37,412 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4554 transitions. Word has length 201 [2022-01-31 16:24:37,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:37,412 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 4554 transitions. [2022-01-31 16:24:37,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4554 transitions. [2022-01-31 16:24:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-31 16:24:37,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:37,417 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:37,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:24:37,417 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1754938053, now seen corresponding path program 1 times [2022-01-31 16:24:37,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:37,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659363983] [2022-01-31 16:24:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:37,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 290 proven. 44 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-01-31 16:24:37,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:37,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659363983] [2022-01-31 16:24:37,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659363983] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:37,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700796050] [2022-01-31 16:24:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:37,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:37,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:37,587 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) [2022-01-31 16:24:37,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:24:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:38,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 16 conjunts are in the unsatisfiable core [2022-01-31 16:24:38,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:38,570 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:38,570 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:38,622 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:24:38,623 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:38,734 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:38,734 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:38,783 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 298 proven. 46 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-01-31 16:24:38,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:24:39,172 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-01-31 16:24:39,306 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-01-31 16:24:39,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700796050] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:39,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:24:39,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-01-31 16:24:39,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056060350] [2022-01-31 16:24:39,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:39,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:39,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:39,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:39,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:24:39,309 INFO L87 Difference]: Start difference. First operand 3089 states and 4554 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:40,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:40,283 INFO L93 Difference]: Finished difference Result 3811 states and 5504 transitions. [2022-01-31 16:24:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:40,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-01-31 16:24:40,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:40,290 INFO L225 Difference]: With dead ends: 3811 [2022-01-31 16:24:40,290 INFO L226 Difference]: Without dead ends: 3811 [2022-01-31 16:24:40,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-01-31 16:24:40,291 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 115 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:40,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 407 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-31 16:24:40,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2022-01-31 16:24:40,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3222. [2022-01-31 16:24:40,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3217 states have (on average 1.4497979483991297) internal successors, (4664), 3217 states have internal predecessors, (4664), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:40,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4668 transitions. [2022-01-31 16:24:40,348 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4668 transitions. Word has length 217 [2022-01-31 16:24:40,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:40,349 INFO L470 AbstractCegarLoop]: Abstraction has 3222 states and 4668 transitions. [2022-01-31 16:24:40,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:40,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4668 transitions. [2022-01-31 16:24:40,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-01-31 16:24:40,353 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:40,353 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:40,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-31 16:24:40,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:40,573 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash -134734986, now seen corresponding path program 1 times [2022-01-31 16:24:40,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:40,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252201270] [2022-01-31 16:24:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:40,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:40,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-01-31 16:24:40,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:40,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252201270] [2022-01-31 16:24:40,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252201270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:40,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:40,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:40,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115509093] [2022-01-31 16:24:40,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:40,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:40,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:40,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:40,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:40,730 INFO L87 Difference]: Start difference. First operand 3222 states and 4668 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:42,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:44,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:46,155 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 [] [2022-01-31 16:24:46,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:46,795 INFO L93 Difference]: Finished difference Result 3811 states and 5443 transitions. [2022-01-31 16:24:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:46,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-01-31 16:24:46,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:46,801 INFO L225 Difference]: With dead ends: 3811 [2022-01-31 16:24:46,802 INFO L226 Difference]: Without dead ends: 3811 [2022-01-31 16:24:46,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:46,802 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 122 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:46,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-01-31 16:24:46,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2022-01-31 16:24:46,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 3229. [2022-01-31 16:24:46,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3224 states have (on average 1.4320719602977667) internal successors, (4617), 3224 states have internal predecessors, (4617), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:46,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4621 transitions. [2022-01-31 16:24:46,842 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4621 transitions. Word has length 218 [2022-01-31 16:24:46,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:46,842 INFO L470 AbstractCegarLoop]: Abstraction has 3229 states and 4621 transitions. [2022-01-31 16:24:46,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:46,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4621 transitions. [2022-01-31 16:24:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-01-31 16:24:46,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:46,846 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:46,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:24:46,847 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:46,847 INFO L85 PathProgramCache]: Analyzing trace with hash 419405090, now seen corresponding path program 1 times [2022-01-31 16:24:46,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:46,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167862011] [2022-01-31 16:24:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:46,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:46,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-01-31 16:24:47,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:47,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167862011] [2022-01-31 16:24:47,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167862011] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:47,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:47,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:47,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336004730] [2022-01-31 16:24:47,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:47,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:47,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:47,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:47,005 INFO L87 Difference]: Start difference. First operand 3229 states and 4621 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:49,523 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 [] [2022-01-31 16:24:51,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:53,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:24:54,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:54,015 INFO L93 Difference]: Finished difference Result 3535 states and 5041 transitions. [2022-01-31 16:24:54,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:24:54,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-01-31 16:24:54,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:54,020 INFO L225 Difference]: With dead ends: 3535 [2022-01-31 16:24:54,020 INFO L226 Difference]: Without dead ends: 3535 [2022-01-31 16:24:54,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:24:54,020 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 72 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:54,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 621 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 544 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-01-31 16:24:54,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2022-01-31 16:24:54,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3229. [2022-01-31 16:24:54,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3224 states have (on average 1.4299007444168734) internal successors, (4610), 3224 states have internal predecessors, (4610), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4614 transitions. [2022-01-31 16:24:54,058 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4614 transitions. Word has length 219 [2022-01-31 16:24:54,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:54,058 INFO L470 AbstractCegarLoop]: Abstraction has 3229 states and 4614 transitions. [2022-01-31 16:24:54,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4614 transitions. [2022-01-31 16:24:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-01-31 16:24:54,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:54,063 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:54,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 16:24:54,063 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:54,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:54,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1191827356, now seen corresponding path program 1 times [2022-01-31 16:24:54,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:54,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223499472] [2022-01-31 16:24:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:54,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 336 proven. 38 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-01-31 16:24:54,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:54,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223499472] [2022-01-31 16:24:54,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223499472] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:54,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37729242] [2022-01-31 16:24:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:54,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:24:54,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:24:54,255 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:24:54,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-31 16:24:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:55,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-31 16:24:55,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:24:55,143 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:55,143 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:55,201 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:24:55,201 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:55,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-01-31 16:24:55,380 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:24:55,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:24:55,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:24:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 290 proven. 68 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-01-31 16:24:55,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:24:55,714 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-01-31 16:24:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2022-01-31 16:24:55,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37729242] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:24:55,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:24:55,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 14 [2022-01-31 16:24:55,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231864412] [2022-01-31 16:24:55,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:55,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:24:55,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:55,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:24:55,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-31 16:24:55,858 INFO L87 Difference]: Start difference. First operand 3229 states and 4614 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:57,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:24:57,019 INFO L93 Difference]: Finished difference Result 3629 states and 5102 transitions. [2022-01-31 16:24:57,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:24:57,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 222 [2022-01-31 16:24:57,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:24:57,022 INFO L225 Difference]: With dead ends: 3629 [2022-01-31 16:24:57,023 INFO L226 Difference]: Without dead ends: 3629 [2022-01-31 16:24:57,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-01-31 16:24:57,023 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 116 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:24:57,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 413 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-31 16:24:57,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3629 states. [2022-01-31 16:24:57,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3629 to 3229. [2022-01-31 16:24:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3224 states have (on average 1.4156327543424319) internal successors, (4564), 3224 states have internal predecessors, (4564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 4568 transitions. [2022-01-31 16:24:57,057 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 4568 transitions. Word has length 222 [2022-01-31 16:24:57,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:24:57,058 INFO L470 AbstractCegarLoop]: Abstraction has 3229 states and 4568 transitions. [2022-01-31 16:24:57,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:24:57,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 4568 transitions. [2022-01-31 16:24:57,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-01-31 16:24:57,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:24:57,062 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:24:57,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-31 16:24:57,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-01-31 16:24:57,287 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:24:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:24:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash -562098506, now seen corresponding path program 1 times [2022-01-31 16:24:57,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:24:57,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635431412] [2022-01-31 16:24:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:24:57,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:24:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:57,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:24:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:24:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2022-01-31 16:24:57,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:24:57,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635431412] [2022-01-31 16:24:57,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635431412] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:24:57,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:24:57,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:24:57,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789608224] [2022-01-31 16:24:57,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:24:57,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:24:57,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:24:57,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:24:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:24:57,473 INFO L87 Difference]: Start difference. First operand 3229 states and 4568 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:00,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:02,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:04,433 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 [] [2022-01-31 16:25:04,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:04,855 INFO L93 Difference]: Finished difference Result 3951 states and 5519 transitions. [2022-01-31 16:25:04,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:04,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 234 [2022-01-31 16:25:04,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:04,859 INFO L225 Difference]: With dead ends: 3951 [2022-01-31 16:25:04,859 INFO L226 Difference]: Without dead ends: 3951 [2022-01-31 16:25:04,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:04,859 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 112 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 49 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:04,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 368 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 463 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-01-31 16:25:04,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2022-01-31 16:25:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3439. [2022-01-31 16:25:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.4033197437390799) internal successors, (4819), 3434 states have internal predecessors, (4819), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4823 transitions. [2022-01-31 16:25:04,894 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4823 transitions. Word has length 234 [2022-01-31 16:25:04,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:04,894 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 4823 transitions. [2022-01-31 16:25:04,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4823 transitions. [2022-01-31 16:25:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-01-31 16:25:04,899 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:04,899 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:04,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 16:25:04,899 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:04,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:04,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1056679587, now seen corresponding path program 1 times [2022-01-31 16:25:04,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:04,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328354854] [2022-01-31 16:25:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:04,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-01-31 16:25:05,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:05,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328354854] [2022-01-31 16:25:05,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328354854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:05,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:05,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:05,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136196780] [2022-01-31 16:25:05,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:05,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:05,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:05,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:05,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:05,044 INFO L87 Difference]: Start difference. First operand 3439 states and 4823 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) [2022-01-31 16:25:07,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:07,628 INFO L93 Difference]: Finished difference Result 3543 states and 4970 transitions. [2022-01-31 16:25:07,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:07,628 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 235 [2022-01-31 16:25:07,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:07,631 INFO L225 Difference]: With dead ends: 3543 [2022-01-31 16:25:07,631 INFO L226 Difference]: Without dead ends: 3543 [2022-01-31 16:25:07,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:07,632 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 30 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:07,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 582 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:25:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2022-01-31 16:25:07,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3439. [2022-01-31 16:25:07,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.4012813046010484) internal successors, (4812), 3434 states have internal predecessors, (4812), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:07,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4816 transitions. [2022-01-31 16:25:07,661 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4816 transitions. Word has length 235 [2022-01-31 16:25:07,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:07,661 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 4816 transitions. [2022-01-31 16:25:07,661 INFO L471 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) [2022-01-31 16:25:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4816 transitions. [2022-01-31 16:25:07,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-01-31 16:25:07,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:07,665 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:07,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 16:25:07,665 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:07,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:07,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1570803257, now seen corresponding path program 1 times [2022-01-31 16:25:07,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:07,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414067414] [2022-01-31 16:25:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:07,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-01-31 16:25:07,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:07,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414067414] [2022-01-31 16:25:07,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414067414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:07,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:07,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:07,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243305407] [2022-01-31 16:25:07,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:07,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:07,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:07,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:07,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:07,826 INFO L87 Difference]: Start difference. First operand 3439 states and 4816 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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) [2022-01-31 16:25:11,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:12,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:12,109 INFO L93 Difference]: Finished difference Result 3580 states and 4975 transitions. [2022-01-31 16:25:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:12,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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 238 [2022-01-31 16:25:12,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:12,112 INFO L225 Difference]: With dead ends: 3580 [2022-01-31 16:25:12,112 INFO L226 Difference]: Without dead ends: 3580 [2022-01-31 16:25:12,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:12,113 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 53 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:12,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 608 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:25:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3580 states. [2022-01-31 16:25:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3580 to 3439. [2022-01-31 16:25:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.3998252766453116) internal successors, (4807), 3434 states have internal predecessors, (4807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:12,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4811 transitions. [2022-01-31 16:25:12,140 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4811 transitions. Word has length 238 [2022-01-31 16:25:12,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:12,140 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 4811 transitions. [2022-01-31 16:25:12,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 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) [2022-01-31 16:25:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4811 transitions. [2022-01-31 16:25:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-01-31 16:25:12,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:12,145 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:12,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 16:25:12,145 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash -752454395, now seen corresponding path program 1 times [2022-01-31 16:25:12,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:12,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451599234] [2022-01-31 16:25:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:12,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:12,339 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 300 proven. 95 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-01-31 16:25:12,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:12,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451599234] [2022-01-31 16:25:12,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451599234] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:12,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864633833] [2022-01-31 16:25:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:12,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:12,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:25:12,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:25:12,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-31 16:25:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:13,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 19 conjunts are in the unsatisfiable core [2022-01-31 16:25:13,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:25:13,328 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:25:13,328 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:25:13,374 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:25:13,374 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-01-31 16:25:13,665 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:25:13,665 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-01-31 16:25:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 160 proven. 112 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-01-31 16:25:13,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:25:13,871 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-01-31 16:25:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2022-01-31 16:25:14,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864633833] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:14,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:25:14,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 13 [2022-01-31 16:25:14,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405505184] [2022-01-31 16:25:14,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:14,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:14,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:14,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:14,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-01-31 16:25:14,136 INFO L87 Difference]: Start difference. First operand 3439 states and 4811 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:15,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:17,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:17,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:17,943 INFO L93 Difference]: Finished difference Result 3867 states and 5347 transitions. [2022-01-31 16:25:17,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:25:17,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 260 [2022-01-31 16:25:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:17,947 INFO L225 Difference]: With dead ends: 3867 [2022-01-31 16:25:17,947 INFO L226 Difference]: Without dead ends: 3867 [2022-01-31 16:25:17,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-01-31 16:25:17,947 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 135 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:17,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 478 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 313 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:25:17,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2022-01-31 16:25:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3439. [2022-01-31 16:25:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3439 states, 3434 states have (on average 1.3899242865463017) internal successors, (4773), 3434 states have internal predecessors, (4773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:17,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3439 states to 3439 states and 4777 transitions. [2022-01-31 16:25:17,976 INFO L78 Accepts]: Start accepts. Automaton has 3439 states and 4777 transitions. Word has length 260 [2022-01-31 16:25:17,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:17,976 INFO L470 AbstractCegarLoop]: Abstraction has 3439 states and 4777 transitions. [2022-01-31 16:25:17,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:17,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3439 states and 4777 transitions. [2022-01-31 16:25:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-01-31 16:25:17,980 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:17,980 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:18,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-31 16:25:18,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:18,181 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:18,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2034181945, now seen corresponding path program 1 times [2022-01-31 16:25:18,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:18,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769393721] [2022-01-31 16:25:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:18,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:18,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-01-31 16:25:18,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:18,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769393721] [2022-01-31 16:25:18,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769393721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:18,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:18,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:18,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669083180] [2022-01-31 16:25:18,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:18,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:18,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:18,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:18,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:18,387 INFO L87 Difference]: Start difference. First operand 3439 states and 4777 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:20,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:22,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:23,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:23,293 INFO L93 Difference]: Finished difference Result 4161 states and 5700 transitions. [2022-01-31 16:25:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:23,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 265 [2022-01-31 16:25:23,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:23,298 INFO L225 Difference]: With dead ends: 4161 [2022-01-31 16:25:23,298 INFO L226 Difference]: Without dead ends: 4161 [2022-01-31 16:25:23,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:23,299 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 114 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:23,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 372 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:25:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4161 states. [2022-01-31 16:25:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4161 to 3621. [2022-01-31 16:25:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3730641592920354) internal successors, (4965), 3616 states have internal predecessors, (4965), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:23,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4969 transitions. [2022-01-31 16:25:23,334 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4969 transitions. Word has length 265 [2022-01-31 16:25:23,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:23,334 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4969 transitions. [2022-01-31 16:25:23,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:23,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4969 transitions. [2022-01-31 16:25:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-01-31 16:25:23,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:23,339 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:23,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 16:25:23,339 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash -856596430, now seen corresponding path program 1 times [2022-01-31 16:25:23,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:23,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285190333] [2022-01-31 16:25:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:23,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-01-31 16:25:23,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:23,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285190333] [2022-01-31 16:25:23,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285190333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:23,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:23,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:25:23,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288987759] [2022-01-31 16:25:23,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:23,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:25:23,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:23,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:25:23,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:25:23,521 INFO L87 Difference]: Start difference. First operand 3621 states and 4969 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:25,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:25,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:25,946 INFO L93 Difference]: Finished difference Result 3752 states and 5113 transitions. [2022-01-31 16:25:25,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:25:25,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 266 [2022-01-31 16:25:25,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:25,950 INFO L225 Difference]: With dead ends: 3752 [2022-01-31 16:25:25,950 INFO L226 Difference]: Without dead ends: 3752 [2022-01-31 16:25:25,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:25:25,951 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 52 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:25,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 604 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:25:25,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2022-01-31 16:25:25,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3621. [2022-01-31 16:25:25,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3716814159292035) internal successors, (4960), 3616 states have internal predecessors, (4960), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4964 transitions. [2022-01-31 16:25:25,976 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4964 transitions. Word has length 266 [2022-01-31 16:25:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:25,977 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4964 transitions. [2022-01-31 16:25:25,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4964 transitions. [2022-01-31 16:25:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-01-31 16:25:25,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:25,982 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:25,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 16:25:25,982 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash -607752822, now seen corresponding path program 1 times [2022-01-31 16:25:25,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:25,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500083522] [2022-01-31 16:25:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:25,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:26,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2022-01-31 16:25:26,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:26,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500083522] [2022-01-31 16:25:26,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500083522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:25:26,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:25:26,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 16:25:26,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322979915] [2022-01-31 16:25:26,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:25:26,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:25:26,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:25:26,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:25:26,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:25:26,489 INFO L87 Difference]: Start difference. First operand 3621 states and 4964 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-01-31 16:25:29,208 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 [] [2022-01-31 16:25:31,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:33,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:35,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:36,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:25:36,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:25:36,829 INFO L93 Difference]: Finished difference Result 3629 states and 4974 transitions. [2022-01-31 16:25:36,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:25:36,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 285 [2022-01-31 16:25:36,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:25:36,833 INFO L225 Difference]: With dead ends: 3629 [2022-01-31 16:25:36,833 INFO L226 Difference]: Without dead ends: 3621 [2022-01-31 16:25:36,833 INFO L932 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 [2022-01-31 16:25:36,834 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 7 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:25:36,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 842 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 440 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2022-01-31 16:25:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2022-01-31 16:25:36,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3621. [2022-01-31 16:25:36,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 1.3714048672566372) internal successors, (4959), 3616 states have internal predecessors, (4959), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:25:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 4963 transitions. [2022-01-31 16:25:36,871 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 4963 transitions. Word has length 285 [2022-01-31 16:25:36,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:25:36,872 INFO L470 AbstractCegarLoop]: Abstraction has 3621 states and 4963 transitions. [2022-01-31 16:25:36,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-01-31 16:25:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 4963 transitions. [2022-01-31 16:25:36,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-01-31 16:25:36,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:25:36,877 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:25:36,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-31 16:25:36,877 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:25:36,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:25:36,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1221453515, now seen corresponding path program 1 times [2022-01-31 16:25:36,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:25:36,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477942571] [2022-01-31 16:25:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:36,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:25:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:38,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:25:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 54 proven. 613 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:25:38,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:25:38,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477942571] [2022-01-31 16:25:38,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477942571] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:25:38,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290601892] [2022-01-31 16:25:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:25:38,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:25:38,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:25:38,758 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:25:38,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-31 16:25:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:25:39,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 184 conjunts are in the unsatisfiable core [2022-01-31 16:25:39,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:25:39,999 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31356 treesize of output 29252 [2022-01-31 16:25:40,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,033 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27878 treesize of output 19710 [2022-01-31 16:25:40,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,110 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8762 treesize of output 8781 [2022-01-31 16:25:40,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,177 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5666 treesize of output 5685 [2022-01-31 16:25:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:25:40,339 INFO L353 Elim1Store]: treesize reduction 138, result has 16.9 percent of original size [2022-01-31 16:25:40,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 6728 treesize of output 2579 [2022-01-31 16:25:40,352 INFO L190 IndexEqualityManager]: detected not equals via solver