/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.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 16:35:29,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:35:29,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:35:29,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:35:29,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:35:29,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:35:29,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:35:30,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:35:30,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:35:30,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:35:30,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:35:30,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:35:30,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:35:30,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:35:30,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:35:30,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:35:30,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:35:30,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:35:30,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:35:30,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:35:30,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:35:30,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:35:30,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:35:30,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:35:30,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:35:30,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:35:30,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:35:30,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:35:30,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:35:30,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:35:30,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:35:30,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:35:30,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:35:30,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:35:30,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:35:30,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:35:30,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:35:30,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:35:30,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:35:30,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:35:30,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:35:30,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:35:30,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:35:30,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:35:30,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:35:30,048 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:35:30,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:35:30,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:35:30,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:35:30,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:35:30,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:35:30,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:35:30,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:35:30,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:35:30,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:35:30,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:35:30,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:35:30,051 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:35:30,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:35:30,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:35:30,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:35:30,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:35:30,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:35:30,247 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:35:30,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-01-31 16:35:30,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098f2b0af/18ecdf971a11491588338b8858103e87/FLAGd400d7ab7 [2022-01-31 16:35:30,738 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:35:30,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-01-31 16:35:30,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098f2b0af/18ecdf971a11491588338b8858103e87/FLAGd400d7ab7 [2022-01-31 16:35:30,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/098f2b0af/18ecdf971a11491588338b8858103e87 [2022-01-31 16:35:30,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:35:30,769 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:35:30,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:35:30,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:35:30,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:35:30,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:35:30" (1/1) ... [2022-01-31 16:35:30,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51311ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:30, skipping insertion in model container [2022-01-31 16:35:30,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:35:30" (1/1) ... [2022-01-31 16:35:30,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:35:30,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:35:31,140 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.16.i.cil-2.c[77660,77673] [2022-01-31 16:35:31,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:35:31,168 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:35:31,244 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.16.i.cil-2.c[77660,77673] [2022-01-31 16:35:31,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:35:31,261 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:35:31,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31 WrapperNode [2022-01-31 16:35:31,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:35:31,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:35:31,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:35:31,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:35:31,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:35:31,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:35:31,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:35:31,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:35:31,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (1/1) ... [2022-01-31 16:35:31,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:35:31,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:35:31,392 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 16:35:31,415 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 16:35:31,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:35:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:35:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:35:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:35:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:35:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:35:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:35:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:35:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:35:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:35:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:35:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:35:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:35:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:35:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:35:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:35:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:35:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:35:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:35:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:35:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:35:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:35:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:35:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:35:31,555 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:35:31,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:35:32,233 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:35:32,654 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:35:32,654 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:35:32,662 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:35:32,667 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:35:32,667 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:35:32,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:35:32 BoogieIcfgContainer [2022-01-31 16:35:32,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:35:32,669 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:35:32,669 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:35:32,670 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:35:32,672 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:35:32" (1/1) ... [2022-01-31 16:35:32,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:35:32 BasicIcfg [2022-01-31 16:35:32,727 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:35:32,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:35:32,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:35:32,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:35:32,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:35:30" (1/4) ... [2022-01-31 16:35:32,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388cf26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:35:32, skipping insertion in model container [2022-01-31 16:35:32,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:35:31" (2/4) ... [2022-01-31 16:35:32,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388cf26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:35:32, skipping insertion in model container [2022-01-31 16:35:32,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:35:32" (3/4) ... [2022-01-31 16:35:32,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388cf26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:35:32, skipping insertion in model container [2022-01-31 16:35:32,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:35:32" (4/4) ... [2022-01-31 16:35:32,732 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.cJordan [2022-01-31 16:35:32,735 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:35:32,735 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:35:32,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:35:32,772 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 16:35:32,773 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:35:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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 16:35:32,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-31 16:35:32,797 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:32,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:32,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:32,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash -359617006, now seen corresponding path program 1 times [2022-01-31 16:35:32,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:32,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416467442] [2022-01-31 16:35:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:32,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:33,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:33,286 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 16:35:33,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:33,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416467442] [2022-01-31 16:35:33,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416467442] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:33,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:33,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:33,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534914907] [2022-01-31 16:35:33,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:33,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:33,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:33,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:33,316 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:35,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:37,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:39,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:39,890 INFO L93 Difference]: Finished difference Result 200 states and 330 transitions. [2022-01-31 16:35:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:39,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-01-31 16:35:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:39,899 INFO L225 Difference]: With dead ends: 200 [2022-01-31 16:35:39,899 INFO L226 Difference]: Without dead ends: 179 [2022-01-31 16:35:39,900 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 16:35:39,902 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 34 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:39,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 661 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 16:35:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-01-31 16:35:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 162. [2022-01-31 16:35:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.5796178343949046) internal successors, (248), 157 states have internal predecessors, (248), 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 16:35:39,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 252 transitions. [2022-01-31 16:35:39,930 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 252 transitions. Word has length 51 [2022-01-31 16:35:39,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:39,930 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 252 transitions. [2022-01-31 16:35:39,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 252 transitions. [2022-01-31 16:35:39,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:35:39,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:39,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:39,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:35:39,933 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:39,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:39,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1602858961, now seen corresponding path program 1 times [2022-01-31 16:35:39,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:39,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495102907] [2022-01-31 16:35:39,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:39,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:40,106 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 16:35:40,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:40,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495102907] [2022-01-31 16:35:40,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495102907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:40,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:40,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:40,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841236237] [2022-01-31 16:35:40,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:40,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:40,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:40,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:40,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:40,113 INFO L87 Difference]: Start difference. First operand 162 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:42,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:44,490 WARN L534 Checker$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 16:35:45,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:45,079 INFO L93 Difference]: Finished difference Result 288 states and 450 transitions. [2022-01-31 16:35:45,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:45,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 16:35:45,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:45,081 INFO L225 Difference]: With dead ends: 288 [2022-01-31 16:35:45,081 INFO L226 Difference]: Without dead ends: 288 [2022-01-31 16:35:45,081 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 16:35:45,082 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 161 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:45,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 716 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:35:45,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-01-31 16:35:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 178. [2022-01-31 16:35:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 173 states have (on average 1.5780346820809248) internal successors, (273), 173 states have internal predecessors, (273), 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 16:35:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 277 transitions. [2022-01-31 16:35:45,093 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 277 transitions. Word has length 64 [2022-01-31 16:35:45,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:45,093 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 277 transitions. [2022-01-31 16:35:45,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:45,094 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 277 transitions. [2022-01-31 16:35:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:35:45,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:45,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:45,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:35:45,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash -704515848, now seen corresponding path program 1 times [2022-01-31 16:35:45,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:45,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483543975] [2022-01-31 16:35:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:45,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:45,246 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 16:35:45,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:45,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483543975] [2022-01-31 16:35:45,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483543975] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:45,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:45,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:45,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186032855] [2022-01-31 16:35:45,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:45,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:45,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:45,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:45,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:45,248 INFO L87 Difference]: Start difference. First operand 178 states and 277 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:47,872 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:49,893 WARN L534 Checker$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 16:35:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:50,350 INFO L93 Difference]: Finished difference Result 303 states and 473 transitions. [2022-01-31 16:35:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:50,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:35:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:50,352 INFO L225 Difference]: With dead ends: 303 [2022-01-31 16:35:50,352 INFO L226 Difference]: Without dead ends: 303 [2022-01-31 16:35:50,352 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 16:35:50,353 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 166 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:50,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 16:35:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-01-31 16:35:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 189. [2022-01-31 16:35:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 184 states have (on average 1.559782608695652) internal successors, (287), 184 states have internal predecessors, (287), 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 16:35:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 291 transitions. [2022-01-31 16:35:50,360 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 291 transitions. Word has length 65 [2022-01-31 16:35:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:50,360 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 291 transitions. [2022-01-31 16:35:50,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 291 transitions. [2022-01-31 16:35:50,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:35:50,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:50,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:50,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:35:50,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:50,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:50,362 INFO L85 PathProgramCache]: Analyzing trace with hash 257305816, now seen corresponding path program 1 times [2022-01-31 16:35:50,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:50,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243272040] [2022-01-31 16:35:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:50,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:50,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:50,482 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 16:35:50,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:50,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243272040] [2022-01-31 16:35:50,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243272040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:50,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:50,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:50,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324234146] [2022-01-31 16:35:50,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:50,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:50,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:50,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:50,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:50,483 INFO L87 Difference]: Start difference. First operand 189 states and 291 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:53,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:55,163 WARN L534 Checker$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 16:35:57,190 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 16:35:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:57,649 INFO L93 Difference]: Finished difference Result 303 states and 470 transitions. [2022-01-31 16:35:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:57,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:35:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:57,651 INFO L225 Difference]: With dead ends: 303 [2022-01-31 16:35:57,651 INFO L226 Difference]: Without dead ends: 303 [2022-01-31 16:35:57,651 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 16:35:57,651 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 164 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:57,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 491 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-01-31 16:35:57,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-01-31 16:35:57,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 190. [2022-01-31 16:35:57,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.545945945945946) internal successors, (286), 185 states have internal predecessors, (286), 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 16:35:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 290 transitions. [2022-01-31 16:35:57,657 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 290 transitions. Word has length 65 [2022-01-31 16:35:57,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:57,657 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 290 transitions. [2022-01-31 16:35:57,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:57,658 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 290 transitions. [2022-01-31 16:35:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:35:57,659 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:57,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:35:57,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:35:57,659 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:57,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:57,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1845016728, now seen corresponding path program 1 times [2022-01-31 16:35:57,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:57,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196420161] [2022-01-31 16:35:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:57,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:57,765 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 16:35:57,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:57,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196420161] [2022-01-31 16:35:57,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196420161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:57,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:57,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:57,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350994694] [2022-01-31 16:35:57,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:57,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:57,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:57,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:57,767 INFO L87 Difference]: Start difference. First operand 190 states and 290 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:00,084 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 16:36:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:01,710 INFO L93 Difference]: Finished difference Result 204 states and 307 transitions. [2022-01-31 16:36:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:01,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:36:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:01,712 INFO L225 Difference]: With dead ends: 204 [2022-01-31 16:36:01,712 INFO L226 Difference]: Without dead ends: 204 [2022-01-31 16:36:01,712 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 16:36:01,713 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:01,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 543 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:36:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-01-31 16:36:01,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 190. [2022-01-31 16:36:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 185 states have internal predecessors, (285), 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 16:36:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 289 transitions. [2022-01-31 16:36:01,717 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 289 transitions. Word has length 65 [2022-01-31 16:36:01,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:01,718 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 289 transitions. [2022-01-31 16:36:01,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 289 transitions. [2022-01-31 16:36:01,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:36:01,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:01,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:01,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:36:01,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:01,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:01,720 INFO L85 PathProgramCache]: Analyzing trace with hash -87401096, now seen corresponding path program 1 times [2022-01-31 16:36:01,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:01,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584361277] [2022-01-31 16:36:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:01,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:01,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:01,823 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 16:36:01,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:01,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584361277] [2022-01-31 16:36:01,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584361277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:01,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:01,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:01,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734068774] [2022-01-31 16:36:01,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:01,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:01,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:01,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:01,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:01,825 INFO L87 Difference]: Start difference. First operand 190 states and 289 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:02,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:05,225 WARN L534 Checker$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 16:36:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:05,568 INFO L93 Difference]: Finished difference Result 203 states and 305 transitions. [2022-01-31 16:36:05,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:05,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:36:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:05,570 INFO L225 Difference]: With dead ends: 203 [2022-01-31 16:36:05,570 INFO L226 Difference]: Without dead ends: 203 [2022-01-31 16:36:05,570 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 16:36:05,571 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:05,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:36:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-01-31 16:36:05,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 190. [2022-01-31 16:36:05,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.5351351351351352) internal successors, (284), 185 states have internal predecessors, (284), 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 16:36:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 288 transitions. [2022-01-31 16:36:05,575 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 288 transitions. Word has length 65 [2022-01-31 16:36:05,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:05,575 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 288 transitions. [2022-01-31 16:36:05,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:05,575 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 288 transitions. [2022-01-31 16:36:05,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 16:36:05,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:05,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:05,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:36:05,576 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:05,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:05,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1229949233, now seen corresponding path program 1 times [2022-01-31 16:36:05,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:05,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801767654] [2022-01-31 16:36:05,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:05,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:05,660 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 16:36:05,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:05,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801767654] [2022-01-31 16:36:05,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801767654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:05,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:05,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:05,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469461950] [2022-01-31 16:36:05,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:05,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:05,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:05,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:05,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:05,662 INFO L87 Difference]: Start difference. First operand 190 states and 288 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:06,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:08,462 WARN L534 Checker$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 16:36:09,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:09,338 INFO L93 Difference]: Finished difference Result 303 states and 465 transitions. [2022-01-31 16:36:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:09,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-01-31 16:36:09,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:09,340 INFO L225 Difference]: With dead ends: 303 [2022-01-31 16:36:09,340 INFO L226 Difference]: Without dead ends: 303 [2022-01-31 16:36:09,340 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 16:36:09,341 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 162 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:09,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:36:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-01-31 16:36:09,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 191. [2022-01-31 16:36:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.521505376344086) internal successors, (283), 186 states have internal predecessors, (283), 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 16:36:09,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 287 transitions. [2022-01-31 16:36:09,345 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 287 transitions. Word has length 66 [2022-01-31 16:36:09,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:09,345 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 287 transitions. [2022-01-31 16:36:09,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:09,346 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 287 transitions. [2022-01-31 16:36:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:36:09,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:09,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:09,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:36:09,347 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:09,347 INFO L85 PathProgramCache]: Analyzing trace with hash -506858700, now seen corresponding path program 1 times [2022-01-31 16:36:09,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:09,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850166949] [2022-01-31 16:36:09,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:09,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:09,426 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 16:36:09,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:09,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850166949] [2022-01-31 16:36:09,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850166949] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:09,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:09,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:09,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093560765] [2022-01-31 16:36:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:09,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:09,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:09,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:09,428 INFO L87 Difference]: Start difference. First operand 191 states and 287 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:11,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:12,265 WARN L534 Checker$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 16:36:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:13,127 INFO L93 Difference]: Finished difference Result 204 states and 303 transitions. [2022-01-31 16:36:13,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:13,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-01-31 16:36:13,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:13,129 INFO L225 Difference]: With dead ends: 204 [2022-01-31 16:36:13,129 INFO L226 Difference]: Without dead ends: 204 [2022-01-31 16:36:13,129 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 16:36:13,130 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:13,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:36:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-01-31 16:36:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 191. [2022-01-31 16:36:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5161290322580645) internal successors, (282), 186 states have internal predecessors, (282), 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 16:36:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 286 transitions. [2022-01-31 16:36:13,133 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 286 transitions. Word has length 67 [2022-01-31 16:36:13,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:13,134 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 286 transitions. [2022-01-31 16:36:13,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 286 transitions. [2022-01-31 16:36:13,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 16:36:13,134 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:13,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:13,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:36:13,135 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:13,135 INFO L85 PathProgramCache]: Analyzing trace with hash -952112884, now seen corresponding path program 1 times [2022-01-31 16:36:13,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:13,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285678124] [2022-01-31 16:36:13,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:13,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:13,232 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 16:36:13,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:13,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285678124] [2022-01-31 16:36:13,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285678124] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:13,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:13,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:13,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472185829] [2022-01-31 16:36:13,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:13,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:13,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:13,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:13,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:13,234 INFO L87 Difference]: Start difference. First operand 191 states and 286 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:15,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:16,568 WARN L534 Checker$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 16:36:17,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:17,765 INFO L93 Difference]: Finished difference Result 194 states and 289 transitions. [2022-01-31 16:36:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:17,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-01-31 16:36:17,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:17,766 INFO L225 Difference]: With dead ends: 194 [2022-01-31 16:36:17,766 INFO L226 Difference]: Without dead ends: 194 [2022-01-31 16:36:17,766 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 16:36:17,767 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:17,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:36:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-01-31 16:36:17,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2022-01-31 16:36:17,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.510752688172043) internal successors, (281), 186 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 16:36:17,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 285 transitions. [2022-01-31 16:36:17,770 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 285 transitions. Word has length 68 [2022-01-31 16:36:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:17,770 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 285 transitions. [2022-01-31 16:36:17,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:17,771 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 285 transitions. [2022-01-31 16:36:17,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-31 16:36:17,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:17,773 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:17,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:36:17,773 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:17,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1316823101, now seen corresponding path program 1 times [2022-01-31 16:36:17,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:17,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837287355] [2022-01-31 16:36:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:17,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:17,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:17,874 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 16:36:17,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:17,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837287355] [2022-01-31 16:36:17,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837287355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:17,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:17,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:17,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443087404] [2022-01-31 16:36:17,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:17,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:17,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:17,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:17,877 INFO L87 Difference]: Start difference. First operand 191 states and 285 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:21,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:21,268 INFO L93 Difference]: Finished difference Result 320 states and 486 transitions. [2022-01-31 16:36:21,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:21,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-01-31 16:36:21,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:21,270 INFO L225 Difference]: With dead ends: 320 [2022-01-31 16:36:21,270 INFO L226 Difference]: Without dead ends: 320 [2022-01-31 16:36:21,271 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 16:36:21,271 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:21,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:36:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-01-31 16:36:21,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 234. [2022-01-31 16:36:21,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.554585152838428) internal successors, (356), 229 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 16:36:21,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 360 transitions. [2022-01-31 16:36:21,275 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 360 transitions. Word has length 68 [2022-01-31 16:36:21,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:21,276 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 360 transitions. [2022-01-31 16:36:21,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 360 transitions. [2022-01-31 16:36:21,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-31 16:36:21,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:21,277 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:21,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:36:21,277 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:21,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:21,277 INFO L85 PathProgramCache]: Analyzing trace with hash 381885929, now seen corresponding path program 1 times [2022-01-31 16:36:21,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:21,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508465025] [2022-01-31 16:36:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:21,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:21,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:21,381 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 16:36:21,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:21,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508465025] [2022-01-31 16:36:21,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508465025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:21,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:21,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:21,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399684831] [2022-01-31 16:36:21,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:21,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:21,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:21,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:21,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:21,382 INFO L87 Difference]: Start difference. First operand 234 states and 360 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:23,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:25,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:25,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:25,872 INFO L93 Difference]: Finished difference Result 276 states and 420 transitions. [2022-01-31 16:36:25,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-01-31 16:36:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:25,873 INFO L225 Difference]: With dead ends: 276 [2022-01-31 16:36:25,873 INFO L226 Difference]: Without dead ends: 276 [2022-01-31 16:36:25,873 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 16:36:25,874 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 30 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:25,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 559 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:36:25,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-01-31 16:36:25,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 256. [2022-01-31 16:36:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5537848605577689) internal successors, (390), 251 states have internal predecessors, (390), 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 16:36:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 394 transitions. [2022-01-31 16:36:25,878 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 394 transitions. Word has length 69 [2022-01-31 16:36:25,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:25,878 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 394 transitions. [2022-01-31 16:36:25,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:25,878 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 394 transitions. [2022-01-31 16:36:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 16:36:25,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:25,879 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:25,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:36:25,879 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:25,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:25,880 INFO L85 PathProgramCache]: Analyzing trace with hash -2053364893, now seen corresponding path program 1 times [2022-01-31 16:36:25,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:25,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971967156] [2022-01-31 16:36:25,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:25,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:25,984 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 16:36:25,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:25,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971967156] [2022-01-31 16:36:25,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971967156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:25,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:25,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:25,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262877289] [2022-01-31 16:36:25,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:25,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:25,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:25,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:25,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:25,985 INFO L87 Difference]: Start difference. First operand 256 states and 394 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:27,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:29,049 WARN L534 Checker$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 16:36:31,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:32,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:32,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:32,732 INFO L93 Difference]: Finished difference Result 365 states and 563 transitions. [2022-01-31 16:36:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:32,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-01-31 16:36:32,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:32,733 INFO L225 Difference]: With dead ends: 365 [2022-01-31 16:36:32,733 INFO L226 Difference]: Without dead ends: 365 [2022-01-31 16:36:32,733 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 16:36:32,734 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 158 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:32,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 400 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-01-31 16:36:32,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-01-31 16:36:32,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 257. [2022-01-31 16:36:32,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 252 states have internal predecessors, (389), 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 16:36:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 393 transitions. [2022-01-31 16:36:32,739 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 393 transitions. Word has length 83 [2022-01-31 16:36:32,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:32,740 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 393 transitions. [2022-01-31 16:36:32,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:32,740 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 393 transitions. [2022-01-31 16:36:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-31 16:36:32,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:32,741 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:32,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:36:32,741 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:32,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1828775293, now seen corresponding path program 1 times [2022-01-31 16:36:32,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:32,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525304421] [2022-01-31 16:36:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:32,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:32,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:36:32,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:32,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525304421] [2022-01-31 16:36:32,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525304421] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:32,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:32,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:32,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105780187] [2022-01-31 16:36:32,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:32,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:32,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:32,820 INFO L87 Difference]: Start difference. First operand 257 states and 393 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:34,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:36,991 INFO L93 Difference]: Finished difference Result 364 states and 559 transitions. [2022-01-31 16:36:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-01-31 16:36:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:36,992 INFO L225 Difference]: With dead ends: 364 [2022-01-31 16:36:36,993 INFO L226 Difference]: Without dead ends: 364 [2022-01-31 16:36:36,993 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 16:36:36,993 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 156 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:36,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 402 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:36:36,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-01-31 16:36:36,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 258. [2022-01-31 16:36:36,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.533596837944664) internal successors, (388), 253 states have internal predecessors, (388), 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 16:36:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 392 transitions. [2022-01-31 16:36:36,998 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 392 transitions. Word has length 83 [2022-01-31 16:36:36,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:36,998 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 392 transitions. [2022-01-31 16:36:36,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:36,998 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 392 transitions. [2022-01-31 16:36:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-31 16:36:36,999 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:36,999 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:36,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:36:36,999 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:36,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1507291911, now seen corresponding path program 1 times [2022-01-31 16:36:36,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:36,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807173865] [2022-01-31 16:36:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:37,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-31 16:36:37,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:37,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807173865] [2022-01-31 16:36:37,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807173865] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:37,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:37,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:37,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508221073] [2022-01-31 16:36:37,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:37,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:37,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:37,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:37,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:37,100 INFO L87 Difference]: Start difference. First operand 258 states and 392 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:39,588 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 16:36:41,930 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 16:36:42,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:42,308 INFO L93 Difference]: Finished difference Result 270 states and 406 transitions. [2022-01-31 16:36:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:42,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-01-31 16:36:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:42,309 INFO L225 Difference]: With dead ends: 270 [2022-01-31 16:36:42,309 INFO L226 Difference]: Without dead ends: 270 [2022-01-31 16:36:42,309 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 16:36:42,310 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 19 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:42,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 622 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:36:42,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-01-31 16:36:42,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 258. [2022-01-31 16:36:42,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5296442687747036) internal successors, (387), 253 states have internal predecessors, (387), 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 16:36:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 391 transitions. [2022-01-31 16:36:42,314 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 391 transitions. Word has length 85 [2022-01-31 16:36:42,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:42,314 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 391 transitions. [2022-01-31 16:36:42,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:42,315 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 391 transitions. [2022-01-31 16:36:42,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-31 16:36:42,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:42,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:42,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:36:42,316 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:42,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1916846855, now seen corresponding path program 1 times [2022-01-31 16:36:42,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:42,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102760125] [2022-01-31 16:36:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:42,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:42,402 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 16:36:42,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:42,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102760125] [2022-01-31 16:36:42,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102760125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:42,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:42,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:42,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016308962] [2022-01-31 16:36:42,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:42,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:42,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:42,404 INFO L87 Difference]: Start difference. First operand 258 states and 391 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 16:36:43,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:45,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:46,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:47,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:47,211 INFO L93 Difference]: Finished difference Result 364 states and 554 transitions. [2022-01-31 16:36:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:47,212 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 86 [2022-01-31 16:36:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:47,213 INFO L225 Difference]: With dead ends: 364 [2022-01-31 16:36:47,213 INFO L226 Difference]: Without dead ends: 364 [2022-01-31 16:36:47,213 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 16:36:47,213 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 159 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:47,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 402 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 16:36:47,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2022-01-31 16:36:47,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 258. [2022-01-31 16:36:47,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.5138339920948616) internal successors, (383), 253 states have internal predecessors, (383), 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 16:36:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 387 transitions. [2022-01-31 16:36:47,218 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 387 transitions. Word has length 86 [2022-01-31 16:36:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:47,218 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 387 transitions. [2022-01-31 16:36:47,218 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 16:36:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 387 transitions. [2022-01-31 16:36:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-31 16:36:47,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:47,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:36:47,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:36:47,219 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:47,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:47,220 INFO L85 PathProgramCache]: Analyzing trace with hash 397807451, now seen corresponding path program 1 times [2022-01-31 16:36:47,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:47,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913896914] [2022-01-31 16:36:47,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:47,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:47,308 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 16:36:47,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:47,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913896914] [2022-01-31 16:36:47,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913896914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:47,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:47,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:47,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875582675] [2022-01-31 16:36:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:47,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:47,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:47,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:47,311 INFO L87 Difference]: Start difference. First operand 258 states and 387 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 16:36:48,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:50,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:52,724 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 16:36:53,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:53,157 INFO L93 Difference]: Finished difference Result 354 states and 537 transitions. [2022-01-31 16:36:53,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:53,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-01-31 16:36:53,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:53,159 INFO L225 Difference]: With dead ends: 354 [2022-01-31 16:36:53,159 INFO L226 Difference]: Without dead ends: 354 [2022-01-31 16:36:53,159 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 16:36:53,159 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 150 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:53,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 422 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:36:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-01-31 16:36:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 258. [2022-01-31 16:36:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 253 states have internal predecessors, (379), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 383 transitions. [2022-01-31 16:36:53,164 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 383 transitions. Word has length 87 [2022-01-31 16:36:53,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:53,164 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 383 transitions. [2022-01-31 16:36:53,164 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 16:36:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 383 transitions. [2022-01-31 16:36:53,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 16:36:53,165 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:53,165 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, 1, 1, 1] [2022-01-31 16:36:53,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:36:53,165 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:53,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:53,167 INFO L85 PathProgramCache]: Analyzing trace with hash -903497846, now seen corresponding path program 1 times [2022-01-31 16:36:53,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:53,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770608887] [2022-01-31 16:36:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:53,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:53,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:53,281 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 16:36:53,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:53,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770608887] [2022-01-31 16:36:53,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770608887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:53,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:53,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:53,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027487405] [2022-01-31 16:36:53,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:53,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:53,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:53,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:53,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:53,283 INFO L87 Difference]: Start difference. First operand 258 states and 383 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:54,310 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 16:36:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:56,692 INFO L93 Difference]: Finished difference Result 349 states and 522 transitions. [2022-01-31 16:36:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:56,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 16:36:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:56,694 INFO L225 Difference]: With dead ends: 349 [2022-01-31 16:36:56,694 INFO L226 Difference]: Without dead ends: 349 [2022-01-31 16:36:56,694 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 16:36:56,694 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 81 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:56,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 537 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:36:56,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-01-31 16:36:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 300. [2022-01-31 16:36:56,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 295 states have (on average 1.511864406779661) internal successors, (446), 295 states have internal predecessors, (446), 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 16:36:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 450 transitions. [2022-01-31 16:36:56,699 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 450 transitions. Word has length 91 [2022-01-31 16:36:56,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:56,699 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 450 transitions. [2022-01-31 16:36:56,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 450 transitions. [2022-01-31 16:36:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-31 16:36:56,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:56,700 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, 1, 1, 1] [2022-01-31 16:36:56,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:36:56,700 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:56,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1352194485, now seen corresponding path program 1 times [2022-01-31 16:36:56,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:56,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830622804] [2022-01-31 16:36:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:56,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:56,786 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 16:36:56,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:56,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830622804] [2022-01-31 16:36:56,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830622804] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:56,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:56,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:56,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736110439] [2022-01-31 16:36:56,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:56,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:56,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:56,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:56,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:56,788 INFO L87 Difference]: Start difference. First operand 300 states and 450 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:59,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:01,948 WARN L534 Checker$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 16:37:02,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:02,363 INFO L93 Difference]: Finished difference Result 396 states and 603 transitions. [2022-01-31 16:37:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:02,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 91 [2022-01-31 16:37:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:02,365 INFO L225 Difference]: With dead ends: 396 [2022-01-31 16:37:02,365 INFO L226 Difference]: Without dead ends: 396 [2022-01-31 16:37:02,365 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 16:37:02,366 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 124 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:02,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 448 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 16:37:02,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-01-31 16:37:02,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 280. [2022-01-31 16:37:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 275 states have (on average 1.5345454545454544) internal successors, (422), 275 states have internal predecessors, (422), 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 16:37:02,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 426 transitions. [2022-01-31 16:37:02,370 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 426 transitions. Word has length 91 [2022-01-31 16:37:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:02,370 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 426 transitions. [2022-01-31 16:37:02,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:02,370 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 426 transitions. [2022-01-31 16:37:02,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-31 16:37:02,371 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:02,371 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:02,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:37:02,371 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:02,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:02,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1815101343, now seen corresponding path program 1 times [2022-01-31 16:37:02,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:02,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377097331] [2022-01-31 16:37:02,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:02,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:02,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:37:02,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:02,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377097331] [2022-01-31 16:37:02,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377097331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:02,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:02,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:02,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591896291] [2022-01-31 16:37:02,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:02,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:02,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:02,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:02,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:02,487 INFO L87 Difference]: Start difference. First operand 280 states and 426 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:04,507 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 16:37:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:04,971 INFO L93 Difference]: Finished difference Result 430 states and 660 transitions. [2022-01-31 16:37:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:04,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-01-31 16:37:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:04,973 INFO L225 Difference]: With dead ends: 430 [2022-01-31 16:37:04,973 INFO L226 Difference]: Without dead ends: 430 [2022-01-31 16:37:04,973 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 16:37:04,974 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 130 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:04,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 432 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:37:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-01-31 16:37:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 344. [2022-01-31 16:37:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5398230088495575) internal successors, (522), 339 states have internal predecessors, (522), 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 16:37:04,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 526 transitions. [2022-01-31 16:37:04,980 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 526 transitions. Word has length 119 [2022-01-31 16:37:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:04,981 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 526 transitions. [2022-01-31 16:37:04,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:04,981 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 526 transitions. [2022-01-31 16:37:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 16:37:04,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:04,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:04,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:37:04,982 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:04,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:04,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1973991093, now seen corresponding path program 1 times [2022-01-31 16:37:04,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:04,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647066308] [2022-01-31 16:37:04,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:04,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:37:05,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:05,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647066308] [2022-01-31 16:37:05,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647066308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:05,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:05,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:05,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271242372] [2022-01-31 16:37:05,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:05,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:05,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:05,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:05,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:05,092 INFO L87 Difference]: Start difference. First operand 344 states and 526 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:06,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:08,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:09,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:10,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:10,969 INFO L93 Difference]: Finished difference Result 432 states and 659 transitions. [2022-01-31 16:37:10,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:10,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-01-31 16:37:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:10,972 INFO L225 Difference]: With dead ends: 432 [2022-01-31 16:37:10,972 INFO L226 Difference]: Without dead ends: 432 [2022-01-31 16:37:10,972 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 16:37:10,974 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 81 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:10,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 551 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:37:10,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-01-31 16:37:10,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 383. [2022-01-31 16:37:10,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 378 states have (on average 1.5423280423280423) internal successors, (583), 378 states have internal predecessors, (583), 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 16:37:10,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 587 transitions. [2022-01-31 16:37:10,983 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 587 transitions. Word has length 125 [2022-01-31 16:37:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:10,983 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 587 transitions. [2022-01-31 16:37:10,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 587 transitions. [2022-01-31 16:37:10,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-31 16:37:10,984 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:10,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:10,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:37:10,985 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:10,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:10,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1987523894, now seen corresponding path program 1 times [2022-01-31 16:37:10,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:10,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265754169] [2022-01-31 16:37:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:10,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-31 16:37:11,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:11,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265754169] [2022-01-31 16:37:11,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265754169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:11,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:11,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:11,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074307084] [2022-01-31 16:37:11,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:11,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:11,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:11,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:11,103 INFO L87 Difference]: Start difference. First operand 383 states and 587 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 16:37:12,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:14,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:14,080 INFO L93 Difference]: Finished difference Result 419 states and 638 transitions. [2022-01-31 16:37:14,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:14,080 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 125 [2022-01-31 16:37:14,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:14,082 INFO L225 Difference]: With dead ends: 419 [2022-01-31 16:37:14,082 INFO L226 Difference]: Without dead ends: 419 [2022-01-31 16:37:14,082 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 16:37:14,086 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 27 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:14,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 641 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 16:37:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-01-31 16:37:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 407. [2022-01-31 16:37:14,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 402 states have (on average 1.5348258706467661) internal successors, (617), 402 states have internal predecessors, (617), 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 16:37:14,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 621 transitions. [2022-01-31 16:37:14,093 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 621 transitions. Word has length 125 [2022-01-31 16:37:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:14,093 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 621 transitions. [2022-01-31 16:37:14,093 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 16:37:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 621 transitions. [2022-01-31 16:37:14,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-31 16:37:14,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:14,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:14,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:37:14,095 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:14,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:14,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1106583750, now seen corresponding path program 1 times [2022-01-31 16:37:14,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:14,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870286689] [2022-01-31 16:37:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:14,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:14,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:37:14,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:14,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870286689] [2022-01-31 16:37:14,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870286689] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:14,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:14,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:14,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131233508] [2022-01-31 16:37:14,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:14,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:14,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:14,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:14,197 INFO L87 Difference]: Start difference. First operand 407 states and 621 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:16,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:17,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:18,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:18,204 INFO L93 Difference]: Finished difference Result 481 states and 729 transitions. [2022-01-31 16:37:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:18,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-01-31 16:37:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:18,206 INFO L225 Difference]: With dead ends: 481 [2022-01-31 16:37:18,206 INFO L226 Difference]: Without dead ends: 481 [2022-01-31 16:37:18,206 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 16:37:18,207 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 125 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:18,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 420 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:37:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-01-31 16:37:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 407. [2022-01-31 16:37:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 402 states have (on average 1.5298507462686568) internal successors, (615), 402 states have internal predecessors, (615), 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 16:37:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 619 transitions. [2022-01-31 16:37:18,212 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 619 transitions. Word has length 126 [2022-01-31 16:37:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:18,213 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 619 transitions. [2022-01-31 16:37:18,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:18,213 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 619 transitions. [2022-01-31 16:37:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-31 16:37:18,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:18,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:18,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:37:18,214 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:18,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:18,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1496750099, now seen corresponding path program 1 times [2022-01-31 16:37:18,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:18,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937653755] [2022-01-31 16:37:18,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:18,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:18,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:37:18,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:18,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937653755] [2022-01-31 16:37:18,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937653755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:18,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:18,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:18,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840277363] [2022-01-31 16:37:18,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:18,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:18,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:18,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:18,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:18,310 INFO L87 Difference]: Start difference. First operand 407 states and 619 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:19,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:21,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:22,692 WARN L534 Checker$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 16:37:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:23,982 INFO L93 Difference]: Finished difference Result 521 states and 791 transitions. [2022-01-31 16:37:23,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:23,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-01-31 16:37:23,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:23,984 INFO L225 Difference]: With dead ends: 521 [2022-01-31 16:37:23,984 INFO L226 Difference]: Without dead ends: 521 [2022-01-31 16:37:23,985 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 16:37:23,985 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 118 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:23,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 421 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 16:37:23,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-01-31 16:37:23,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 450. [2022-01-31 16:37:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 445 states have (on average 1.5348314606741573) internal successors, (683), 445 states have internal predecessors, (683), 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 16:37:23,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 687 transitions. [2022-01-31 16:37:23,990 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 687 transitions. Word has length 133 [2022-01-31 16:37:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:23,990 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 687 transitions. [2022-01-31 16:37:23,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:23,991 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 687 transitions. [2022-01-31 16:37:23,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-01-31 16:37:23,991 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:23,992 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:37:23,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:37:23,992 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:23,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1613379998, now seen corresponding path program 1 times [2022-01-31 16:37:23,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:23,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807015619] [2022-01-31 16:37:23,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:23,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:37:24,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:24,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807015619] [2022-01-31 16:37:24,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807015619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:24,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:24,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:24,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167422274] [2022-01-31 16:37:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:24,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:24,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:24,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:24,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:24,112 INFO L87 Difference]: Start difference. First operand 450 states and 687 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:26,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:28,883 WARN L534 Checker$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 16:37:29,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:29,279 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2022-01-31 16:37:29,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:29,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-01-31 16:37:29,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:29,280 INFO L225 Difference]: With dead ends: 488 [2022-01-31 16:37:29,281 INFO L226 Difference]: Without dead ends: 488 [2022-01-31 16:37:29,281 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 16:37:29,281 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 60 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:29,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 551 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 16:37:29,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-01-31 16:37:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-01-31 16:37:29,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.530066815144766) internal successors, (687), 449 states have internal predecessors, (687), 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 16:37:29,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 691 transitions. [2022-01-31 16:37:29,287 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 691 transitions. Word has length 134 [2022-01-31 16:37:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:29,287 INFO L470 AbstractCegarLoop]: Abstraction has 454 states and 691 transitions. [2022-01-31 16:37:29,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:29,287 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 691 transitions. [2022-01-31 16:37:29,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-31 16:37:29,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:29,288 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, 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 16:37:29,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:37:29,289 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:29,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:29,289 INFO L85 PathProgramCache]: Analyzing trace with hash -237089050, now seen corresponding path program 1 times [2022-01-31 16:37:29,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:29,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23011248] [2022-01-31 16:37:29,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:29,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:29,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:29,379 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:37:29,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:29,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23011248] [2022-01-31 16:37:29,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23011248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:29,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:29,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:29,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832319135] [2022-01-31 16:37:29,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:29,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:29,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:29,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:29,381 INFO L87 Difference]: Start difference. First operand 454 states and 691 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:32,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:33,619 INFO L93 Difference]: Finished difference Result 571 states and 863 transitions. [2022-01-31 16:37:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:33,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-01-31 16:37:33,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:33,621 INFO L225 Difference]: With dead ends: 571 [2022-01-31 16:37:33,621 INFO L226 Difference]: Without dead ends: 571 [2022-01-31 16:37:33,621 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 16:37:33,622 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 132 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:33,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 448 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:37:33,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-01-31 16:37:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 484. [2022-01-31 16:37:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5198329853862214) internal successors, (728), 479 states have internal predecessors, (728), 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 16:37:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 732 transitions. [2022-01-31 16:37:33,627 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 732 transitions. Word has length 146 [2022-01-31 16:37:33,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:33,628 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 732 transitions. [2022-01-31 16:37:33,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 732 transitions. [2022-01-31 16:37:33,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:37:33,629 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:33,629 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, 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 16:37:33,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:37:33,629 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:33,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1919103288, now seen corresponding path program 1 times [2022-01-31 16:37:33,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:33,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002519641] [2022-01-31 16:37:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:33,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:33,734 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:37:33,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:33,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002519641] [2022-01-31 16:37:33,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002519641] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:33,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:33,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:33,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820049976] [2022-01-31 16:37:33,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:33,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:33,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:33,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:33,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:33,737 INFO L87 Difference]: Start difference. First operand 484 states and 732 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:36,422 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 16:37:38,944 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 16:37:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:39,342 INFO L93 Difference]: Finished difference Result 516 states and 778 transitions. [2022-01-31 16:37:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:39,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:37:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:39,344 INFO L225 Difference]: With dead ends: 516 [2022-01-31 16:37:39,344 INFO L226 Difference]: Without dead ends: 516 [2022-01-31 16:37:39,344 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 16:37:39,344 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 67 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:39,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 555 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 16:37:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-01-31 16:37:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-01-31 16:37:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5177453027139876) internal successors, (727), 479 states have internal predecessors, (727), 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 16:37:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 731 transitions. [2022-01-31 16:37:39,350 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 731 transitions. Word has length 147 [2022-01-31 16:37:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:39,350 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 731 transitions. [2022-01-31 16:37:39,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 731 transitions. [2022-01-31 16:37:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:37:39,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:39,351 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:39,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:37:39,352 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:39,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1108517993, now seen corresponding path program 1 times [2022-01-31 16:37:39,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:39,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131831892] [2022-01-31 16:37:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:39,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-31 16:37:39,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:39,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131831892] [2022-01-31 16:37:39,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131831892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:39,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:39,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:39,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388942172] [2022-01-31 16:37:39,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:39,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:39,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:39,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:39,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:39,444 INFO L87 Difference]: Start difference. First operand 484 states and 731 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:41,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:43,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:43,984 INFO L93 Difference]: Finished difference Result 516 states and 777 transitions. [2022-01-31 16:37:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:43,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:37:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:43,986 INFO L225 Difference]: With dead ends: 516 [2022-01-31 16:37:43,986 INFO L226 Difference]: Without dead ends: 516 [2022-01-31 16:37:43,986 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 16:37:43,986 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:43,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 569 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:37:43,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-01-31 16:37:43,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-01-31 16:37:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5156576200417538) internal successors, (726), 479 states have internal predecessors, (726), 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 16:37:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2022-01-31 16:37:43,994 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 147 [2022-01-31 16:37:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:43,994 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2022-01-31 16:37:43,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:43,994 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2022-01-31 16:37:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:37:43,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:43,996 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:43,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:37:43,996 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:43,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:43,997 INFO L85 PathProgramCache]: Analyzing trace with hash -592997544, now seen corresponding path program 1 times [2022-01-31 16:37:43,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48299728] [2022-01-31 16:37:43,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:43,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:44,092 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:37:44,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:44,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48299728] [2022-01-31 16:37:44,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48299728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:44,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:44,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:44,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498682661] [2022-01-31 16:37:44,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:44,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:44,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:44,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:44,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:44,093 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:45,138 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 16:37:46,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:48,496 WARN L534 Checker$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 16:37:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:48,829 INFO L93 Difference]: Finished difference Result 939 states and 1409 transitions. [2022-01-31 16:37:48,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:48,830 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:37:48,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:48,832 INFO L225 Difference]: With dead ends: 939 [2022-01-31 16:37:48,832 INFO L226 Difference]: Without dead ends: 939 [2022-01-31 16:37:48,833 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 16:37:48,833 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:48,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 451 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 335 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-01-31 16:37:48,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-01-31 16:37:48,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-01-31 16:37:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5042826552462527) internal successors, (1405), 934 states have internal predecessors, (1405), 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 16:37:48,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1409 transitions. [2022-01-31 16:37:48,844 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1409 transitions. Word has length 147 [2022-01-31 16:37:48,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:48,844 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1409 transitions. [2022-01-31 16:37:48,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:48,845 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1409 transitions. [2022-01-31 16:37:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:37:48,846 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:48,846 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:48,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:37:48,847 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:48,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:48,847 INFO L85 PathProgramCache]: Analyzing trace with hash 900914905, now seen corresponding path program 1 times [2022-01-31 16:37:48,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:48,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267069699] [2022-01-31 16:37:48,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:48,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:48,934 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-01-31 16:37:48,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:48,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267069699] [2022-01-31 16:37:48,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267069699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:48,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:48,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:48,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980716994] [2022-01-31 16:37:48,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:48,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:48,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:48,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:48,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:48,937 INFO L87 Difference]: Start difference. First operand 939 states and 1409 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:51,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:53,623 WARN L534 Checker$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 16:37:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:53,910 INFO L93 Difference]: Finished difference Result 966 states and 1444 transitions. [2022-01-31 16:37:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:53,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:37:53,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:53,913 INFO L225 Difference]: With dead ends: 966 [2022-01-31 16:37:53,913 INFO L226 Difference]: Without dead ends: 966 [2022-01-31 16:37:53,913 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 16:37:53,917 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:53,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 284 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:37:53,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-01-31 16:37:53,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-01-31 16:37:53,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4984391259105099) internal successors, (1440), 961 states have internal predecessors, (1440), 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 16:37:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1444 transitions. [2022-01-31 16:37:53,927 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1444 transitions. Word has length 147 [2022-01-31 16:37:53,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:53,928 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1444 transitions. [2022-01-31 16:37:53,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:53,928 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1444 transitions. [2022-01-31 16:37:53,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:37:53,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:53,930 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:37:53,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:37:53,930 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:53,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:53,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1002545190, now seen corresponding path program 1 times [2022-01-31 16:37:53,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:53,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651437676] [2022-01-31 16:37:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:53,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-01-31 16:37:54,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:54,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651437676] [2022-01-31 16:37:54,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651437676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:54,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:54,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:54,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970108696] [2022-01-31 16:37:54,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:54,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:54,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:54,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:54,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:54,010 INFO L87 Difference]: Start difference. First operand 966 states and 1444 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:55,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:58,138 WARN L534 Checker$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 16:37:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:58,383 INFO L93 Difference]: Finished difference Result 968 states and 1446 transitions. [2022-01-31 16:37:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:58,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-01-31 16:37:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:58,385 INFO L225 Difference]: With dead ends: 968 [2022-01-31 16:37:58,385 INFO L226 Difference]: Without dead ends: 968 [2022-01-31 16:37:58,386 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 16:37:58,386 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:58,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:37:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-01-31 16:37:58,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-01-31 16:37:58,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.497403946002077) internal successors, (1442), 963 states have internal predecessors, (1442), 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 16:37:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1446 transitions. [2022-01-31 16:37:58,396 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1446 transitions. Word has length 147 [2022-01-31 16:37:58,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:58,396 INFO L470 AbstractCegarLoop]: Abstraction has 968 states and 1446 transitions. [2022-01-31 16:37:58,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1446 transitions. [2022-01-31 16:37:58,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 16:37:58,398 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:58,398 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, 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] [2022-01-31 16:37:58,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:37:58,398 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:58,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:58,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2123088927, now seen corresponding path program 1 times [2022-01-31 16:37:58,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:58,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780102237] [2022-01-31 16:37:58,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:58,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:37:58,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:58,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780102237] [2022-01-31 16:37:58,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780102237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:58,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:58,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:58,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197471607] [2022-01-31 16:37:58,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:58,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:58,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:58,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:58,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:58,493 INFO L87 Difference]: Start difference. First operand 968 states and 1446 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:00,507 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 16:38:01,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:01,055 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-01-31 16:38:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:01,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-01-31 16:38:01,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:01,059 INFO L225 Difference]: With dead ends: 1423 [2022-01-31 16:38:01,059 INFO L226 Difference]: Without dead ends: 1423 [2022-01-31 16:38:01,059 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 16:38:01,059 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 157 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:01,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 595 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:38:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-01-31 16:38:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-01-31 16:38:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.495768688293371) internal successors, (2121), 1418 states have internal predecessors, (2121), 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 16:38:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-01-31 16:38:01,073 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-01-31 16:38:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:01,073 INFO L470 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-01-31 16:38:01,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-01-31 16:38:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-31 16:38:01,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:01,076 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:01,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:38:01,076 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:01,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:01,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1724469547, now seen corresponding path program 1 times [2022-01-31 16:38:01,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:01,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122459461] [2022-01-31 16:38:01,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:01,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:01,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-01-31 16:38:01,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:01,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122459461] [2022-01-31 16:38:01,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122459461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:01,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:01,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:01,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823856796] [2022-01-31 16:38:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:01,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:01,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:01,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:01,197 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 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 16:38:03,211 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 16:38:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:03,637 INFO L93 Difference]: Finished difference Result 1760 states and 2602 transitions. [2022-01-31 16:38:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:03,638 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 16:38:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:03,642 INFO L225 Difference]: With dead ends: 1760 [2022-01-31 16:38:03,642 INFO L226 Difference]: Without dead ends: 1760 [2022-01-31 16:38:03,643 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 16:38:03,643 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 122 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:03,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 440 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:38:03,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2022-01-31 16:38:03,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1534. [2022-01-31 16:38:03,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1529 states have (on average 1.4970568999345977) internal successors, (2289), 1529 states have internal predecessors, (2289), 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 16:38:03,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2293 transitions. [2022-01-31 16:38:03,658 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2293 transitions. Word has length 178 [2022-01-31 16:38:03,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:03,658 INFO L470 AbstractCegarLoop]: Abstraction has 1534 states and 2293 transitions. [2022-01-31 16:38:03,659 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 16:38:03,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2293 transitions. [2022-01-31 16:38:03,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-01-31 16:38:03,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:03,661 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, 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] [2022-01-31 16:38:03,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:38:03,662 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:03,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:03,662 INFO L85 PathProgramCache]: Analyzing trace with hash -642977214, now seen corresponding path program 1 times [2022-01-31 16:38:03,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:03,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381071911] [2022-01-31 16:38:03,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:03,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:03,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-01-31 16:38:03,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:03,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381071911] [2022-01-31 16:38:03,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381071911] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:03,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:03,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:03,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203249158] [2022-01-31 16:38:03,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:03,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:03,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:03,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:03,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:03,784 INFO L87 Difference]: Start difference. First operand 1534 states and 2293 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 16:38:07,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:09,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:09,678 INFO L93 Difference]: Finished difference Result 1684 states and 2512 transitions. [2022-01-31 16:38:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:09,679 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 187 [2022-01-31 16:38:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:09,682 INFO L225 Difference]: With dead ends: 1684 [2022-01-31 16:38:09,682 INFO L226 Difference]: Without dead ends: 1684 [2022-01-31 16:38:09,683 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 16:38:09,683 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 41 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:09,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 657 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:38:09,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2022-01-31 16:38:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1618. [2022-01-31 16:38:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1618 states, 1613 states have (on average 1.4972101673899565) internal successors, (2415), 1613 states have internal predecessors, (2415), 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 16:38:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1618 states to 1618 states and 2419 transitions. [2022-01-31 16:38:09,697 INFO L78 Accepts]: Start accepts. Automaton has 1618 states and 2419 transitions. Word has length 187 [2022-01-31 16:38:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:09,697 INFO L470 AbstractCegarLoop]: Abstraction has 1618 states and 2419 transitions. [2022-01-31 16:38:09,697 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 16:38:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1618 states and 2419 transitions. [2022-01-31 16:38:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-01-31 16:38:09,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:09,701 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:09,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:38:09,701 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:09,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash 711480470, now seen corresponding path program 1 times [2022-01-31 16:38:09,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:09,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474864] [2022-01-31 16:38:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:09,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:09,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-01-31 16:38:09,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:09,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474864] [2022-01-31 16:38:09,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:09,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:09,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:09,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442092703] [2022-01-31 16:38:09,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:09,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:09,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:09,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:09,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:09,842 INFO L87 Difference]: Start difference. First operand 1618 states and 2419 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:11,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:13,123 WARN L534 Checker$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 16:38:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:14,147 INFO L93 Difference]: Finished difference Result 2139 states and 3203 transitions. [2022-01-31 16:38:14,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:14,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-01-31 16:38:14,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:14,152 INFO L225 Difference]: With dead ends: 2139 [2022-01-31 16:38:14,152 INFO L226 Difference]: Without dead ends: 2139 [2022-01-31 16:38:14,152 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 16:38:14,153 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:14,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-01-31 16:38:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2022-01-31 16:38:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2139. [2022-01-31 16:38:14,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4990627928772258) internal successors, (3199), 2134 states have internal predecessors, (3199), 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 16:38:14,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3203 transitions. [2022-01-31 16:38:14,170 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3203 transitions. Word has length 203 [2022-01-31 16:38:14,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:14,171 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3203 transitions. [2022-01-31 16:38:14,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:14,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3203 transitions. [2022-01-31 16:38:14,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-01-31 16:38:14,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:14,174 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:14,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:38:14,175 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1184547134, now seen corresponding path program 1 times [2022-01-31 16:38:14,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:14,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164883642] [2022-01-31 16:38:14,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:14,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:14,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-01-31 16:38:14,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:14,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164883642] [2022-01-31 16:38:14,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164883642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:14,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:14,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:14,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466314814] [2022-01-31 16:38:14,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:14,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:14,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:14,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:14,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:14,285 INFO L87 Difference]: Start difference. First operand 2139 states and 3203 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 16:38:15,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:17,896 WARN L534 Checker$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 16:38:19,742 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 16:38:20,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:20,186 INFO L93 Difference]: Finished difference Result 2428 states and 3557 transitions. [2022-01-31 16:38:20,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:20,186 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 241 [2022-01-31 16:38:20,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:20,192 INFO L225 Difference]: With dead ends: 2428 [2022-01-31 16:38:20,192 INFO L226 Difference]: Without dead ends: 2428 [2022-01-31 16:38:20,192 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 16:38:20,192 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 140 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:20,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 485 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 513 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-01-31 16:38:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-01-31 16:38:20,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2139. [2022-01-31 16:38:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4803186504217432) internal successors, (3159), 2134 states have internal predecessors, (3159), 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 16:38:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3163 transitions. [2022-01-31 16:38:20,213 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3163 transitions. Word has length 241 [2022-01-31 16:38:20,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:20,213 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3163 transitions. [2022-01-31 16:38:20,214 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 16:38:20,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3163 transitions. [2022-01-31 16:38:20,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-01-31 16:38:20,217 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:20,217 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:20,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:38:20,217 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash 829865666, now seen corresponding path program 1 times [2022-01-31 16:38:20,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:20,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121876650] [2022-01-31 16:38:20,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:20,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-01-31 16:38:20,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:20,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121876650] [2022-01-31 16:38:20,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121876650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:20,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:20,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:20,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109026926] [2022-01-31 16:38:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:20,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:20,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:20,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:20,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:20,345 INFO L87 Difference]: Start difference. First operand 2139 states and 3163 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 16:38:22,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:24,259 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 16:38:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:25,596 INFO L93 Difference]: Finished difference Result 2227 states and 3285 transitions. [2022-01-31 16:38:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:25,596 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 241 [2022-01-31 16:38:25,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:25,601 INFO L225 Difference]: With dead ends: 2227 [2022-01-31 16:38:25,601 INFO L226 Difference]: Without dead ends: 2227 [2022-01-31 16:38:25,601 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 16:38:25,602 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 43 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:25,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 655 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:38:25,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2022-01-31 16:38:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2139. [2022-01-31 16:38:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.478444236176195) internal successors, (3155), 2134 states have internal predecessors, (3155), 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 16:38:25,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3159 transitions. [2022-01-31 16:38:25,620 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3159 transitions. Word has length 241 [2022-01-31 16:38:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:25,621 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3159 transitions. [2022-01-31 16:38:25,621 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 16:38:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3159 transitions. [2022-01-31 16:38:25,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-01-31 16:38:25,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:25,624 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:25,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:38:25,624 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:25,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:25,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2131789788, now seen corresponding path program 1 times [2022-01-31 16:38:25,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:25,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870483976] [2022-01-31 16:38:25,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:25,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:25,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-01-31 16:38:25,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:25,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870483976] [2022-01-31 16:38:25,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870483976] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:25,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:25,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:25,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054063249] [2022-01-31 16:38:25,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:25,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:25,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:25,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:25,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:25,766 INFO L87 Difference]: Start difference. First operand 2139 states and 3159 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:27,744 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 16:38:29,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:29,111 INFO L93 Difference]: Finished difference Result 2211 states and 3259 transitions. [2022-01-31 16:38:29,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:29,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-01-31 16:38:29,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:29,121 INFO L225 Difference]: With dead ends: 2211 [2022-01-31 16:38:29,121 INFO L226 Difference]: Without dead ends: 2211 [2022-01-31 16:38:29,121 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 16:38:29,122 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 39 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:29,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 647 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:38:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2022-01-31 16:38:29,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2139. [2022-01-31 16:38:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4765698219306467) internal successors, (3151), 2134 states have internal predecessors, (3151), 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 16:38:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3155 transitions. [2022-01-31 16:38:29,139 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3155 transitions. Word has length 242 [2022-01-31 16:38:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:29,139 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3155 transitions. [2022-01-31 16:38:29,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3155 transitions. [2022-01-31 16:38:29,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-01-31 16:38:29,142 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:29,142 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:29,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:38:29,142 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:29,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash 762659973, now seen corresponding path program 1 times [2022-01-31 16:38:29,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:29,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183065223] [2022-01-31 16:38:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:29,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-01-31 16:38:29,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:29,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183065223] [2022-01-31 16:38:29,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183065223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:29,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:29,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:38:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111117112] [2022-01-31 16:38:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:29,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:38:29,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:38:29,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:38:29,257 INFO L87 Difference]: Start difference. First operand 2139 states and 3155 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:30,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:31,756 WARN L534 Checker$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 16:38:34,307 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 16:38:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:34,775 INFO L93 Difference]: Finished difference Result 2428 states and 3513 transitions. [2022-01-31 16:38:34,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:38:34,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-01-31 16:38:34,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:34,780 INFO L225 Difference]: With dead ends: 2428 [2022-01-31 16:38:34,780 INFO L226 Difference]: Without dead ends: 2428 [2022-01-31 16:38:34,780 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 16:38:34,780 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 137 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:34,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 438 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 16:38:34,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2022-01-31 16:38:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2139. [2022-01-31 16:38:34,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2134 states have (on average 1.4597000937207123) internal successors, (3115), 2134 states have internal predecessors, (3115), 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 16:38:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3119 transitions. [2022-01-31 16:38:34,807 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3119 transitions. Word has length 242 [2022-01-31 16:38:34,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:34,807 INFO L470 AbstractCegarLoop]: Abstraction has 2139 states and 3119 transitions. [2022-01-31 16:38:34,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:34,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3119 transitions. [2022-01-31 16:38:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-01-31 16:38:34,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:34,810 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:34,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:38:34,810 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:34,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash 258878258, now seen corresponding path program 1 times [2022-01-31 16:38:34,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:34,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644403961] [2022-01-31 16:38:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:34,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-01-31 16:38:34,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:34,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644403961] [2022-01-31 16:38:34,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644403961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:34,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:34,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:34,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230825727] [2022-01-31 16:38:34,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:34,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:34,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:34,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:34,954 INFO L87 Difference]: Start difference. First operand 2139 states and 3119 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 16:38:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:38,045 INFO L93 Difference]: Finished difference Result 2659 states and 3875 transitions. [2022-01-31 16:38:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:38,045 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 244 [2022-01-31 16:38:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:38,049 INFO L225 Difference]: With dead ends: 2659 [2022-01-31 16:38:38,049 INFO L226 Difference]: Without dead ends: 2659 [2022-01-31 16:38:38,050 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 16:38:38,050 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:38,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-01-31 16:38:38,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2022-01-31 16:38:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2659. [2022-01-31 16:38:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2659 states, 2654 states have (on average 1.458553127354936) internal successors, (3871), 2654 states have internal predecessors, (3871), 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 16:38:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2659 states to 2659 states and 3875 transitions. [2022-01-31 16:38:38,071 INFO L78 Accepts]: Start accepts. Automaton has 2659 states and 3875 transitions. Word has length 244 [2022-01-31 16:38:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:38,071 INFO L470 AbstractCegarLoop]: Abstraction has 2659 states and 3875 transitions. [2022-01-31 16:38:38,071 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 16:38:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2659 states and 3875 transitions. [2022-01-31 16:38:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-01-31 16:38:38,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:38,074 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:38,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:38:38,074 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:38,075 INFO L85 PathProgramCache]: Analyzing trace with hash 454431661, now seen corresponding path program 1 times [2022-01-31 16:38:38,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:38,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727024263] [2022-01-31 16:38:38,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:38,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:38,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-01-31 16:38:38,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:38,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727024263] [2022-01-31 16:38:38,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727024263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:38,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:38,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:38,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159071826] [2022-01-31 16:38:38,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:38,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:38,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:38,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:38,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:38,189 INFO L87 Difference]: Start difference. First operand 2659 states and 3875 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 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 16:38:39,311 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 16:38:41,327 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 16:38:42,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:42,371 INFO L93 Difference]: Finished difference Result 3180 states and 4639 transitions. [2022-01-31 16:38:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:42,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 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 250 [2022-01-31 16:38:42,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:42,375 INFO L225 Difference]: With dead ends: 3180 [2022-01-31 16:38:42,376 INFO L226 Difference]: Without dead ends: 3180 [2022-01-31 16:38:42,376 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 16:38:42,376 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:42,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:38:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2022-01-31 16:38:42,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3180. [2022-01-31 16:38:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 3175 states have (on average 1.4598425196850393) internal successors, (4635), 3175 states have internal predecessors, (4635), 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 16:38:42,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4639 transitions. [2022-01-31 16:38:42,405 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4639 transitions. Word has length 250 [2022-01-31 16:38:42,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:42,405 INFO L470 AbstractCegarLoop]: Abstraction has 3180 states and 4639 transitions. [2022-01-31 16:38:42,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 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 16:38:42,405 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4639 transitions. [2022-01-31 16:38:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-01-31 16:38:42,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:42,410 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:42,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:38:42,410 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:42,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:42,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1734798122, now seen corresponding path program 1 times [2022-01-31 16:38:42,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:42,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304922710] [2022-01-31 16:38:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:42,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-01-31 16:38:42,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:42,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304922710] [2022-01-31 16:38:42,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304922710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:42,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:42,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:42,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162888512] [2022-01-31 16:38:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:42,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:42,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:42,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:42,544 INFO L87 Difference]: Start difference. First operand 3180 states and 4639 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 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 16:38:43,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:45,933 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 16:38:46,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:46,684 INFO L93 Difference]: Finished difference Result 3701 states and 5404 transitions. [2022-01-31 16:38:46,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:46,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 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 252 [2022-01-31 16:38:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:46,690 INFO L225 Difference]: With dead ends: 3701 [2022-01-31 16:38:46,690 INFO L226 Difference]: Without dead ends: 3701 [2022-01-31 16:38:46,690 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 16:38:46,690 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:46,691 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:38:46,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2022-01-31 16:38:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3701. [2022-01-31 16:38:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3701 states, 3696 states have (on average 1.4610389610389611) internal successors, (5400), 3696 states have internal predecessors, (5400), 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 16:38:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3701 states to 3701 states and 5404 transitions. [2022-01-31 16:38:46,720 INFO L78 Accepts]: Start accepts. Automaton has 3701 states and 5404 transitions. Word has length 252 [2022-01-31 16:38:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:46,720 INFO L470 AbstractCegarLoop]: Abstraction has 3701 states and 5404 transitions. [2022-01-31 16:38:46,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 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 16:38:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3701 states and 5404 transitions. [2022-01-31 16:38:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-01-31 16:38:46,725 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:46,725 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, 5, 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, 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 16:38:46,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:38:46,726 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:46,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1277534805, now seen corresponding path program 1 times [2022-01-31 16:38:46,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:46,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048114428] [2022-01-31 16:38:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:46,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-01-31 16:38:46,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:46,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048114428] [2022-01-31 16:38:46,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048114428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:46,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:46,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:46,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414868258] [2022-01-31 16:38:46,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:46,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:46,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:46,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:46,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:46,900 INFO L87 Difference]: Start difference. First operand 3701 states and 5404 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 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 16:38:48,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:51,407 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 16:38:51,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:51,848 INFO L93 Difference]: Finished difference Result 4215 states and 6153 transitions. [2022-01-31 16:38:51,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:51,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 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 276 [2022-01-31 16:38:51,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:51,855 INFO L225 Difference]: With dead ends: 4215 [2022-01-31 16:38:51,855 INFO L226 Difference]: Without dead ends: 4215 [2022-01-31 16:38:51,855 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 16:38:51,855 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:51,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-01-31 16:38:51,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4215 states. [2022-01-31 16:38:51,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4215 to 4215. [2022-01-31 16:38:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 4210 states have (on average 1.4605700712589074) internal successors, (6149), 4210 states have internal predecessors, (6149), 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 16:38:51,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 6153 transitions. [2022-01-31 16:38:51,889 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 6153 transitions. Word has length 276 [2022-01-31 16:38:51,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:51,889 INFO L470 AbstractCegarLoop]: Abstraction has 4215 states and 6153 transitions. [2022-01-31 16:38:51,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 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 16:38:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 6153 transitions. [2022-01-31 16:38:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-01-31 16:38:51,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:51,894 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, 5, 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, 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 16:38:51,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 16:38:51,895 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:51,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:51,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1401608052, now seen corresponding path program 1 times [2022-01-31 16:38:51,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:51,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646395251] [2022-01-31 16:38:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:51,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:52,030 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-01-31 16:38:52,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:52,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646395251] [2022-01-31 16:38:52,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646395251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:52,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:52,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:52,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024133755] [2022-01-31 16:38:52,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:52,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:52,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:52,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:52,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:52,032 INFO L87 Difference]: Start difference. First operand 4215 states and 6153 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 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 16:38:54,045 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 16:38:54,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:54,488 INFO L93 Difference]: Finished difference Result 4703 states and 6862 transitions. [2022-01-31 16:38:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:54,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 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 276 [2022-01-31 16:38:54,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:54,496 INFO L225 Difference]: With dead ends: 4703 [2022-01-31 16:38:54,496 INFO L226 Difference]: Without dead ends: 4703 [2022-01-31 16:38:54,497 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 16:38:54,497 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:54,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 479 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:38:54,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states. [2022-01-31 16:38:54,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 4703. [2022-01-31 16:38:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4703 states, 4698 states have (on average 1.4597701149425288) internal successors, (6858), 4698 states have internal predecessors, (6858), 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 16:38:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4703 states to 4703 states and 6862 transitions. [2022-01-31 16:38:54,537 INFO L78 Accepts]: Start accepts. Automaton has 4703 states and 6862 transitions. Word has length 276 [2022-01-31 16:38:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:54,538 INFO L470 AbstractCegarLoop]: Abstraction has 4703 states and 6862 transitions. [2022-01-31 16:38:54,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (3), 2 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 16:38:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4703 states and 6862 transitions. [2022-01-31 16:38:54,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-01-31 16:38:54,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:54,544 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:38:54,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:38:54,545 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:54,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:54,545 INFO L85 PathProgramCache]: Analyzing trace with hash -70707793, now seen corresponding path program 1 times [2022-01-31 16:38:54,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:54,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646299163] [2022-01-31 16:38:54,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:54,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2022-01-31 16:38:54,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:54,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646299163] [2022-01-31 16:38:54,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646299163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:54,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:54,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:54,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355547381] [2022-01-31 16:38:54,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:54,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:54,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:54,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:54,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:54,707 INFO L87 Difference]: Start difference. First operand 4703 states and 6862 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 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 16:38:55,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:38:57,869 WARN L534 Checker$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 16:38:58,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:38:58,561 INFO L93 Difference]: Finished difference Result 5224 states and 7630 transitions. [2022-01-31 16:38:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:38:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 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 359 [2022-01-31 16:38:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:38:58,567 INFO L225 Difference]: With dead ends: 5224 [2022-01-31 16:38:58,568 INFO L226 Difference]: Without dead ends: 5224 [2022-01-31 16:38:58,568 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 16:38:58,568 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 160 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:38:58,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:38:58,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5224 states. [2022-01-31 16:38:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5224 to 5224. [2022-01-31 16:38:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 5219 states have (on average 1.4611994634987546) internal successors, (7626), 5219 states have internal predecessors, (7626), 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 16:38:58,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 7630 transitions. [2022-01-31 16:38:58,628 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 7630 transitions. Word has length 359 [2022-01-31 16:38:58,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:38:58,628 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 7630 transitions. [2022-01-31 16:38:58,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 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 16:38:58,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 7630 transitions. [2022-01-31 16:38:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-01-31 16:38:58,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:38:58,634 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:38:58,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 16:38:58,635 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:38:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:38:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1935497870, now seen corresponding path program 1 times [2022-01-31 16:38:58,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:38:58,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485436468] [2022-01-31 16:38:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:58,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:58,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-01-31 16:38:58,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:58,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485436468] [2022-01-31 16:38:58,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485436468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:38:58,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:38:58,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:38:58,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495135429] [2022-01-31 16:38:58,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:38:58,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:38:58,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:38:58,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:38:58,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:38:58,796 INFO L87 Difference]: Start difference. First operand 5224 states and 7630 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:38:59,963 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:01,980 WARN L534 Checker$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 16:39:03,458 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 16:39:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:03,915 INFO L93 Difference]: Finished difference Result 5739 states and 8380 transitions. [2022-01-31 16:39:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:03,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 399 [2022-01-31 16:39:03,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:03,922 INFO L225 Difference]: With dead ends: 5739 [2022-01-31 16:39:03,922 INFO L226 Difference]: Without dead ends: 5739 [2022-01-31 16:39:03,922 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 16:39:03,923 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:03,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-01-31 16:39:03,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5739 states. [2022-01-31 16:39:03,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5739 to 5739. [2022-01-31 16:39:03,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 5734 states have (on average 1.4607603767003836) internal successors, (8376), 5734 states have internal predecessors, (8376), 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 16:39:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 8380 transitions. [2022-01-31 16:39:03,981 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 8380 transitions. Word has length 399 [2022-01-31 16:39:03,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:03,982 INFO L470 AbstractCegarLoop]: Abstraction has 5739 states and 8380 transitions. [2022-01-31 16:39:03,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:39:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 8380 transitions. [2022-01-31 16:39:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-01-31 16:39:03,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:03,988 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 16:39:03,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-31 16:39:03,989 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:03,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1383950275, now seen corresponding path program 1 times [2022-01-31 16:39:03,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:03,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235192661] [2022-01-31 16:39:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:03,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-01-31 16:39:04,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:04,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235192661] [2022-01-31 16:39:04,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235192661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:04,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:04,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:39:04,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292366464] [2022-01-31 16:39:04,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:04,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:39:04,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:04,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:39:04,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:39:04,148 INFO L87 Difference]: Start difference. First operand 5739 states and 8380 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 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 16:39:05,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:07,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:08,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:08,973 INFO L93 Difference]: Finished difference Result 6222 states and 9082 transitions. [2022-01-31 16:39:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 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 400 [2022-01-31 16:39:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:08,981 INFO L225 Difference]: With dead ends: 6222 [2022-01-31 16:39:08,981 INFO L226 Difference]: Without dead ends: 6222 [2022-01-31 16:39:08,981 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 16:39:08,981 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:08,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-01-31 16:39:08,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6222 states. [2022-01-31 16:39:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6222 to 6222. [2022-01-31 16:39:09,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6222 states, 6217 states have (on average 1.4601898021553803) internal successors, (9078), 6217 states have internal predecessors, (9078), 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 16:39:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 9082 transitions. [2022-01-31 16:39:09,058 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 9082 transitions. Word has length 400 [2022-01-31 16:39:09,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:09,058 INFO L470 AbstractCegarLoop]: Abstraction has 6222 states and 9082 transitions. [2022-01-31 16:39:09,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 1 states have call successors, (3), 2 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 16:39:09,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 9082 transitions. [2022-01-31 16:39:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-01-31 16:39:09,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:09,070 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:09,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-31 16:39:09,070 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:09,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:09,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1926651641, now seen corresponding path program 1 times [2022-01-31 16:39:09,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:09,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926641838] [2022-01-31 16:39:09,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:09,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:09,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-01-31 16:39:09,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:09,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926641838] [2022-01-31 16:39:09,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926641838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:09,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:09,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:39:09,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997721334] [2022-01-31 16:39:09,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:09,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:39:09,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:09,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:39:09,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:39:09,243 INFO L87 Difference]: Start difference. First operand 6222 states and 9082 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 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 16:39:11,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:12,182 INFO L93 Difference]: Finished difference Result 6743 states and 9853 transitions. [2022-01-31 16:39:12,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:12,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 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 484 [2022-01-31 16:39:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:12,189 INFO L225 Difference]: With dead ends: 6743 [2022-01-31 16:39:12,189 INFO L226 Difference]: Without dead ends: 6743 [2022-01-31 16:39:12,189 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 16:39:12,189 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:12,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 382 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:39:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6743 states. [2022-01-31 16:39:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6743 to 6743. [2022-01-31 16:39:12,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6738 states have (on average 1.4617097061442565) internal successors, (9849), 6738 states have internal predecessors, (9849), 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 16:39:12,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 9853 transitions. [2022-01-31 16:39:12,257 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 9853 transitions. Word has length 484 [2022-01-31 16:39:12,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:12,257 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 9853 transitions. [2022-01-31 16:39:12,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 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 16:39:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 9853 transitions. [2022-01-31 16:39:12,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-01-31 16:39:12,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:12,265 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:12,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-31 16:39:12,265 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:12,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:12,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1218320683, now seen corresponding path program 1 times [2022-01-31 16:39:12,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:12,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005635529] [2022-01-31 16:39:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:12,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:12,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-01-31 16:39:12,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:12,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005635529] [2022-01-31 16:39:12,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005635529] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:12,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:12,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:39:12,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114625895] [2022-01-31 16:39:12,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:12,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:39:12,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:12,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:39:12,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:39:12,450 INFO L87 Difference]: Start difference. First operand 6743 states and 9853 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 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 16:39:16,512 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 16:39:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:16,997 INFO L93 Difference]: Finished difference Result 7819 states and 11343 transitions. [2022-01-31 16:39:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:39:16,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 525 [2022-01-31 16:39:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:17,042 INFO L225 Difference]: With dead ends: 7819 [2022-01-31 16:39:17,042 INFO L226 Difference]: Without dead ends: 7819 [2022-01-31 16:39:17,042 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 16:39:17,042 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 68 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:17,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 705 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-01-31 16:39:17,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7819 states. [2022-01-31 16:39:17,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7819 to 7276. [2022-01-31 16:39:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7276 states, 7271 states have (on average 1.4618346857378628) internal successors, (10629), 7271 states have internal predecessors, (10629), 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 16:39:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7276 states to 7276 states and 10633 transitions. [2022-01-31 16:39:17,095 INFO L78 Accepts]: Start accepts. Automaton has 7276 states and 10633 transitions. Word has length 525 [2022-01-31 16:39:17,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:17,095 INFO L470 AbstractCegarLoop]: Abstraction has 7276 states and 10633 transitions. [2022-01-31 16:39:17,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 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 16:39:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 7276 states and 10633 transitions. [2022-01-31 16:39:17,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-01-31 16:39:17,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:17,104 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:17,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-31 16:39:17,104 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:17,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:17,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1646733805, now seen corresponding path program 1 times [2022-01-31 16:39:17,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:17,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841771455] [2022-01-31 16:39:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:17,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:17,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-01-31 16:39:17,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:17,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841771455] [2022-01-31 16:39:17,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841771455] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:17,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:17,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:39:17,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924157612] [2022-01-31 16:39:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:17,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:39:17,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:17,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:39:17,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:39:17,309 INFO L87 Difference]: Start difference. First operand 7276 states and 10633 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 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 16:39:19,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:20,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:20,287 INFO L93 Difference]: Finished difference Result 7833 states and 11444 transitions. [2022-01-31 16:39:20,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:20,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 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 525 [2022-01-31 16:39:20,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:20,294 INFO L225 Difference]: With dead ends: 7833 [2022-01-31 16:39:20,295 INFO L226 Difference]: Without dead ends: 7833 [2022-01-31 16:39:20,295 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 16:39:20,295 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:20,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-31 16:39:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-01-31 16:39:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7833. [2022-01-31 16:39:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7833 states, 7828 states have (on average 1.4614205416453756) internal successors, (11440), 7828 states have internal predecessors, (11440), 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 16:39:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7833 states to 7833 states and 11444 transitions. [2022-01-31 16:39:20,358 INFO L78 Accepts]: Start accepts. Automaton has 7833 states and 11444 transitions. Word has length 525 [2022-01-31 16:39:20,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:20,359 INFO L470 AbstractCegarLoop]: Abstraction has 7833 states and 11444 transitions. [2022-01-31 16:39:20,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (3), 2 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 16:39:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 7833 states and 11444 transitions. [2022-01-31 16:39:20,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-01-31 16:39:20,368 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:20,368 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:20,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-31 16:39:20,368 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:20,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -107494532, now seen corresponding path program 1 times [2022-01-31 16:39:20,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:20,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642059201] [2022-01-31 16:39:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:20,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:20,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:20,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-01-31 16:39:20,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:20,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642059201] [2022-01-31 16:39:20,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642059201] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:20,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:20,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:39:20,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411822924] [2022-01-31 16:39:20,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:20,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:39:20,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:20,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:39:20,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:39:20,614 INFO L87 Difference]: Start difference. First operand 7833 states and 11444 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 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 16:39:22,621 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 16:39:23,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:23,075 INFO L93 Difference]: Finished difference Result 8358 states and 12207 transitions. [2022-01-31 16:39:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:23,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 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 526 [2022-01-31 16:39:23,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:23,082 INFO L225 Difference]: With dead ends: 8358 [2022-01-31 16:39:23,082 INFO L226 Difference]: Without dead ends: 8358 [2022-01-31 16:39:23,082 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 16:39:23,083 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:23,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 594 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-01-31 16:39:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8358 states. [2022-01-31 16:39:23,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8358 to 8358. [2022-01-31 16:39:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8358 states, 8353 states have (on average 1.4609122470968514) internal successors, (12203), 8353 states have internal predecessors, (12203), 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 16:39:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8358 states to 8358 states and 12207 transitions. [2022-01-31 16:39:23,141 INFO L78 Accepts]: Start accepts. Automaton has 8358 states and 12207 transitions. Word has length 526 [2022-01-31 16:39:23,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:23,141 INFO L470 AbstractCegarLoop]: Abstraction has 8358 states and 12207 transitions. [2022-01-31 16:39:23,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 3 states have internal predecessors, (205), 1 states have call successors, (3), 2 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 16:39:23,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8358 states and 12207 transitions. [2022-01-31 16:39:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-01-31 16:39:23,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:23,150 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:23,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-31 16:39:23,151 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:23,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash -591823516, now seen corresponding path program 1 times [2022-01-31 16:39:23,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:23,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765285755] [2022-01-31 16:39:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:23,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:23,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3438 backedges. 910 proven. 0 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2022-01-31 16:39:23,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:23,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765285755] [2022-01-31 16:39:23,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765285755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:23,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:23,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:39:23,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398336529] [2022-01-31 16:39:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:23,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:39:23,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:23,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:39:23,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:39:23,431 INFO L87 Difference]: Start difference. First operand 8358 states and 12207 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 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 16:39:24,842 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 16:39:26,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:26,078 INFO L93 Difference]: Finished difference Result 8920 states and 13041 transitions. [2022-01-31 16:39:26,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:26,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 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 612 [2022-01-31 16:39:26,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:26,113 INFO L225 Difference]: With dead ends: 8920 [2022-01-31 16:39:26,113 INFO L226 Difference]: Without dead ends: 8920 [2022-01-31 16:39:26,113 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 16:39:26,113 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:26,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-01-31 16:39:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8920 states. [2022-01-31 16:39:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8920 to 8920. [2022-01-31 16:39:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 8915 states have (on average 1.462366797532249) internal successors, (13037), 8915 states have internal predecessors, (13037), 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 16:39:26,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 13041 transitions. [2022-01-31 16:39:26,167 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 13041 transitions. Word has length 612 [2022-01-31 16:39:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:26,168 INFO L470 AbstractCegarLoop]: Abstraction has 8920 states and 13041 transitions. [2022-01-31 16:39:26,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 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 16:39:26,168 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 13041 transitions. [2022-01-31 16:39:26,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2022-01-31 16:39:26,177 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:26,177 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 16:39:26,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-31 16:39:26,178 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:26,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:26,178 INFO L85 PathProgramCache]: Analyzing trace with hash 331960158, now seen corresponding path program 1 times [2022-01-31 16:39:26,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:26,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647273960] [2022-01-31 16:39:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:26,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1710 proven. 48 refuted. 0 times theorem prover too weak. 2188 trivial. 0 not checked. [2022-01-31 16:39:26,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:26,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647273960] [2022-01-31 16:39:26,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647273960] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:39:26,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628712002] [2022-01-31 16:39:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:26,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:39:26,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:39:26,624 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 16:39:26,625 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 16:39:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:27,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-31 16:39:27,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:39:27,949 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:39:27,949 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 16:39:28,001 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:39:28,002 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 16:39:28,292 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 16:39:28,574 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-31 16:39:28,606 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 31 treesize of output 19 [2022-01-31 16:39:28,611 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 13 [2022-01-31 16:39:28,637 INFO L353 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-01-31 16:39:28,638 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-01-31 16:39:28,716 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-01-31 16:39:28,717 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-01-31 16:39:28,938 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:39:28,938 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 29 treesize of output 11 [2022-01-31 16:39:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1705 proven. 256 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2022-01-31 16:39:29,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:39:29,359 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 77 treesize of output 53 [2022-01-31 16:39:29,362 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 53 treesize of output 41 [2022-01-31 16:39:31,425 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 195 treesize of output 189 [2022-01-31 16:39:31,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:39:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 2240 trivial. 0 not checked. [2022-01-31 16:39:31,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628712002] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:39:31,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:39:31,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 11] total 17 [2022-01-31 16:39:31,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221561441] [2022-01-31 16:39:31,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:31,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:39:31,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:39:31,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-01-31 16:39:31,842 INFO L87 Difference]: Start difference. First operand 8920 states and 13041 transitions. Second operand has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 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 16:39:38,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:38,585 INFO L93 Difference]: Finished difference Result 15864 states and 23195 transitions. [2022-01-31 16:39:38,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:39:38,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 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 654 [2022-01-31 16:39:38,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:38,598 INFO L225 Difference]: With dead ends: 15864 [2022-01-31 16:39:38,599 INFO L226 Difference]: Without dead ends: 15864 [2022-01-31 16:39:38,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1325 GetRequests, 1305 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2022-01-31 16:39:38,599 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 278 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 114 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:38,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 1152 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 633 Invalid, 0 Unknown, 114 Unchecked, 2.6s Time] [2022-01-31 16:39:38,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15864 states. [2022-01-31 16:39:38,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15864 to 13715. [2022-01-31 16:39:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13715 states, 13710 states have (on average 1.47490882567469) internal successors, (20221), 13710 states have internal predecessors, (20221), 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 16:39:38,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13715 states to 13715 states and 20225 transitions. [2022-01-31 16:39:38,749 INFO L78 Accepts]: Start accepts. Automaton has 13715 states and 20225 transitions. Word has length 654 [2022-01-31 16:39:38,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:38,749 INFO L470 AbstractCegarLoop]: Abstraction has 13715 states and 20225 transitions. [2022-01-31 16:39:38,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.0) internal successors, (224), 7 states have internal predecessors, (224), 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 16:39:38,749 INFO L276 IsEmpty]: Start isEmpty. Operand 13715 states and 20225 transitions. [2022-01-31 16:39:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-01-31 16:39:38,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:38,763 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:38,786 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 16:39:38,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:39:38,969 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:38,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:38,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2044655492, now seen corresponding path program 1 times [2022-01-31 16:39:38,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:38,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934355335] [2022-01-31 16:39:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:38,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:39,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3953 backedges. 2140 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2022-01-31 16:39:39,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:39,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934355335] [2022-01-31 16:39:39,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934355335] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:39,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:39,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:39:39,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935224137] [2022-01-31 16:39:39,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:39,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:39:39,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:39,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:39:39,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:39:39,273 INFO L87 Difference]: Start difference. First operand 13715 states and 20225 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 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 16:39:40,778 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 16:39:43,790 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 16:39:44,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:44,890 INFO L93 Difference]: Finished difference Result 14762 states and 21608 transitions. [2022-01-31 16:39:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:39:44,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 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 656 [2022-01-31 16:39:44,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:44,904 INFO L225 Difference]: With dead ends: 14762 [2022-01-31 16:39:44,904 INFO L226 Difference]: Without dead ends: 14762 [2022-01-31 16:39:44,904 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 16:39:44,907 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 66 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:44,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 703 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 594 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-01-31 16:39:44,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14762 states. [2022-01-31 16:39:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14762 to 13731. [2022-01-31 16:39:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13731 states, 13726 states have (on average 1.4743552382340084) internal successors, (20237), 13726 states have internal predecessors, (20237), 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 16:39:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13731 states to 13731 states and 20241 transitions. [2022-01-31 16:39:45,059 INFO L78 Accepts]: Start accepts. Automaton has 13731 states and 20241 transitions. Word has length 656 [2022-01-31 16:39:45,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:45,059 INFO L470 AbstractCegarLoop]: Abstraction has 13731 states and 20241 transitions. [2022-01-31 16:39:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 1 states have call successors, (3), 2 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 16:39:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 13731 states and 20241 transitions. [2022-01-31 16:39:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2022-01-31 16:39:45,076 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:45,076 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:45,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-31 16:39:45,076 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash 88451326, now seen corresponding path program 1 times [2022-01-31 16:39:45,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:45,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953457783] [2022-01-31 16:39:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:45,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2542 proven. 46 refuted. 0 times theorem prover too weak. 2050 trivial. 0 not checked. [2022-01-31 16:39:45,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953457783] [2022-01-31 16:39:45,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953457783] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:39:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391967713] [2022-01-31 16:39:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:45,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:39:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:39:45,448 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 16:39:45,483 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 16:39:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:46,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 23 conjunts are in the unsatisfiable core [2022-01-31 16:39:46,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:39:46,749 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:39:46,749 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 16:39:46,787 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:39:46,788 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 16:39:47,113 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 16:39:47,244 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:39:47,245 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 16:39:47,325 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 16:39:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2537 proven. 238 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2022-01-31 16:39:47,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:39:47,962 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 16:39:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4638 backedges. 2510 proven. 0 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-01-31 16:39:48,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391967713] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:39:48,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:39:48,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-01-31 16:39:48,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491576616] [2022-01-31 16:39:48,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:48,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:39:48,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:39:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-31 16:39:48,290 INFO L87 Difference]: Start difference. First operand 13731 states and 20241 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 16:39:49,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:49,487 INFO L93 Difference]: Finished difference Result 15570 states and 22723 transitions. [2022-01-31 16:39:49,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:39:49,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 698 [2022-01-31 16:39:49,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:49,501 INFO L225 Difference]: With dead ends: 15570 [2022-01-31 16:39:49,501 INFO L226 Difference]: Without dead ends: 15570 [2022-01-31 16:39:49,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1406 GetRequests, 1396 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-01-31 16:39:49,502 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 120 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:49,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 597 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-31 16:39:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2022-01-31 16:39:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 13747. [2022-01-31 16:39:49,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13747 states, 13742 states have (on average 1.4726386261097366) internal successors, (20237), 13742 states have internal predecessors, (20237), 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 16:39:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13747 states to 13747 states and 20241 transitions. [2022-01-31 16:39:49,618 INFO L78 Accepts]: Start accepts. Automaton has 13747 states and 20241 transitions. Word has length 698 [2022-01-31 16:39:49,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:49,619 INFO L470 AbstractCegarLoop]: Abstraction has 13747 states and 20241 transitions. [2022-01-31 16:39:49,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 16:39:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13747 states and 20241 transitions. [2022-01-31 16:39:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-01-31 16:39:49,633 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:49,633 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:49,656 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 16:39:49,837 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,SelfDestructingSolverStorable53 [2022-01-31 16:39:49,838 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:49,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:49,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1005383334, now seen corresponding path program 1 times [2022-01-31 16:39:49,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:49,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095984071] [2022-01-31 16:39:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:49,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:50,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4611 backedges. 2511 proven. 0 refuted. 0 times theorem prover too weak. 2100 trivial. 0 not checked. [2022-01-31 16:39:50,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:50,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095984071] [2022-01-31 16:39:50,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095984071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:50,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:50,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:39:50,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926042290] [2022-01-31 16:39:50,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:50,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:39:50,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:50,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:39:50,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:39:50,129 INFO L87 Difference]: Start difference. First operand 13747 states and 20241 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 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 16:39:51,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:53,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:39:55,557 WARN L534 Checker$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 16:39:57,580 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 16:39:58,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:39:58,079 INFO L93 Difference]: Finished difference Result 14666 states and 21426 transitions. [2022-01-31 16:39:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:39:58,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 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 700 [2022-01-31 16:39:58,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:39:58,093 INFO L225 Difference]: With dead ends: 14666 [2022-01-31 16:39:58,094 INFO L226 Difference]: Without dead ends: 14666 [2022-01-31 16:39:58,094 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 16:39:58,094 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 80 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:39:58,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 695 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 577 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-01-31 16:39:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-01-31 16:39:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 13747. [2022-01-31 16:39:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13747 states, 13742 states have (on average 1.470601076990249) internal successors, (20209), 13742 states have internal predecessors, (20209), 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 16:39:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13747 states to 13747 states and 20213 transitions. [2022-01-31 16:39:58,212 INFO L78 Accepts]: Start accepts. Automaton has 13747 states and 20213 transitions. Word has length 700 [2022-01-31 16:39:58,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:39:58,213 INFO L470 AbstractCegarLoop]: Abstraction has 13747 states and 20213 transitions. [2022-01-31 16:39:58,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 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 16:39:58,213 INFO L276 IsEmpty]: Start isEmpty. Operand 13747 states and 20213 transitions. [2022-01-31 16:39:58,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2022-01-31 16:39:58,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:39:58,227 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:39:58,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-31 16:39:58,227 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:39:58,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:39:58,227 INFO L85 PathProgramCache]: Analyzing trace with hash -539237120, now seen corresponding path program 1 times [2022-01-31 16:39:58,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:39:58,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693546253] [2022-01-31 16:39:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:39:58,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:39:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:39:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:39:58,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4645 backedges. 2441 proven. 0 refuted. 0 times theorem prover too weak. 2204 trivial. 0 not checked. [2022-01-31 16:39:58,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:39:58,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693546253] [2022-01-31 16:39:58,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693546253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:39:58,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:39:58,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:39:58,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659247119] [2022-01-31 16:39:58,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:39:58,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:39:58,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:39:58,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:39:58,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:39:58,482 INFO L87 Difference]: Start difference. First operand 13747 states and 20213 transitions. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 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 16:39:59,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:01,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:04,562 WARN L534 Checker$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 16:40:04,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:40:04,968 INFO L93 Difference]: Finished difference Result 14867 states and 21739 transitions. [2022-01-31 16:40:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:40:04,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 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 700 [2022-01-31 16:40:04,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:40:04,981 INFO L225 Difference]: With dead ends: 14867 [2022-01-31 16:40:04,981 INFO L226 Difference]: Without dead ends: 14867 [2022-01-31 16:40:04,981 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 16:40:04,981 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 28 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:40:04,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 639 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-01-31 16:40:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14867 states. [2022-01-31 16:40:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14867 to 14475. [2022-01-31 16:40:05,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14475 states, 14470 states have (on average 1.4662750518313752) internal successors, (21217), 14470 states have internal predecessors, (21217), 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 16:40:05,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14475 states to 14475 states and 21221 transitions. [2022-01-31 16:40:05,085 INFO L78 Accepts]: Start accepts. Automaton has 14475 states and 21221 transitions. Word has length 700 [2022-01-31 16:40:05,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:40:05,086 INFO L470 AbstractCegarLoop]: Abstraction has 14475 states and 21221 transitions. [2022-01-31 16:40:05,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 4 states have internal predecessors, (210), 1 states have call successors, (3), 2 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 16:40:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 14475 states and 21221 transitions. [2022-01-31 16:40:05,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-01-31 16:40:05,135 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:40:05,135 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:05,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-31 16:40:05,135 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:40:05,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:40:05,136 INFO L85 PathProgramCache]: Analyzing trace with hash 876144030, now seen corresponding path program 1 times [2022-01-31 16:40:05,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:40:05,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150328425] [2022-01-31 16:40:05,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:40:05,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:40:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:40:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 2525 proven. 0 refuted. 0 times theorem prover too weak. 2237 trivial. 0 not checked. [2022-01-31 16:40:05,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:40:05,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150328425] [2022-01-31 16:40:05,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150328425] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:40:05,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:40:05,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:40:05,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417786250] [2022-01-31 16:40:05,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:40:05,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:40:05,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:40:05,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:40:05,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:40:05,466 INFO L87 Difference]: Start difference. First operand 14475 states and 21221 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 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 16:40:08,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:10,818 WARN L534 Checker$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 16:40:11,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:40:11,260 INFO L93 Difference]: Finished difference Result 14859 states and 21738 transitions. [2022-01-31 16:40:11,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:40:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 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 706 [2022-01-31 16:40:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:40:11,275 INFO L225 Difference]: With dead ends: 14859 [2022-01-31 16:40:11,275 INFO L226 Difference]: Without dead ends: 14859 [2022-01-31 16:40:11,275 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 16:40:11,278 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 42 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:40:11,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 654 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:40:11,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14859 states. [2022-01-31 16:40:11,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14859 to 14475. [2022-01-31 16:40:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14475 states, 14470 states have (on average 1.4651693158258465) internal successors, (21201), 14470 states have internal predecessors, (21201), 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 16:40:11,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14475 states to 14475 states and 21205 transitions. [2022-01-31 16:40:11,434 INFO L78 Accepts]: Start accepts. Automaton has 14475 states and 21205 transitions. Word has length 706 [2022-01-31 16:40:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:40:11,435 INFO L470 AbstractCegarLoop]: Abstraction has 14475 states and 21205 transitions. [2022-01-31 16:40:11,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 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 16:40:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 14475 states and 21205 transitions. [2022-01-31 16:40:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-01-31 16:40:11,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:40:11,450 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:11,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-31 16:40:11,451 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:40:11,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:40:11,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1995830594, now seen corresponding path program 1 times [2022-01-31 16:40:11,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:40:11,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826840611] [2022-01-31 16:40:11,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:40:11,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:40:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:40:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2264 proven. 530 refuted. 0 times theorem prover too weak. 2065 trivial. 0 not checked. [2022-01-31 16:40:12,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:40:12,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826840611] [2022-01-31 16:40:12,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826840611] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:40:12,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773457952] [2022-01-31 16:40:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:40:12,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:40:12,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:40:12,287 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 16:40:12,288 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 16:40:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:13,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3122 conjuncts, 33 conjunts are in the unsatisfiable core [2022-01-31 16:40:13,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:40:13,700 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:40:13,700 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 16:40:13,982 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:40:13,983 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 16:40:14,074 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 24 treesize of output 20 [2022-01-31 16:40:14,077 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:40:14,077 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 28 [2022-01-31 16:40:14,241 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-31 16:40:14,262 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 31 treesize of output 19 [2022-01-31 16:40:14,264 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 13 [2022-01-31 16:40:14,287 INFO L353 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-01-31 16:40:14,287 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 33 [2022-01-31 16:40:14,361 INFO L353 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-01-31 16:40:14,361 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 45 [2022-01-31 16:40:14,438 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:40:14,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-01-31 16:40:14,505 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 16:40:14,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2445 proven. 215 refuted. 0 times theorem prover too weak. 2199 trivial. 0 not checked. [2022-01-31 16:40:14,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:40:14,990 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 38 treesize of output 26 [2022-01-31 16:40:14,994 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 26 treesize of output 20 [2022-01-31 16:40:18,910 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 74 treesize of output 72 [2022-01-31 16:40:18,912 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 74 treesize of output 70 [2022-01-31 16:40:18,914 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 80 treesize of output 64 [2022-01-31 16:40:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 2258 proven. 0 refuted. 0 times theorem prover too weak. 2601 trivial. 0 not checked. [2022-01-31 16:40:19,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773457952] provided 1 perfect and 1 imperfect interpolant sequences [2022-01-31 16:40:19,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-01-31 16:40:19,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18, 9] total 26 [2022-01-31 16:40:19,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021743388] [2022-01-31 16:40:19,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:40:19,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:40:19,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:40:19,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:40:19,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=579, Unknown=2, NotChecked=0, Total=650 [2022-01-31 16:40:19,323 INFO L87 Difference]: Start difference. First operand 14475 states and 21205 transitions. Second operand has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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 16:40:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:40:19,493 INFO L93 Difference]: Finished difference Result 16425 states and 24140 transitions. [2022-01-31 16:40:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:40:19,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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 712 [2022-01-31 16:40:19,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:40:19,510 INFO L225 Difference]: With dead ends: 16425 [2022-01-31 16:40:19,510 INFO L226 Difference]: Without dead ends: 16425 [2022-01-31 16:40:19,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1424 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=75, Invalid=625, Unknown=2, NotChecked=0, Total=702 [2022-01-31 16:40:19,511 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 228 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 124 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:40:19,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 757 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 124 Unchecked, 0.1s Time] [2022-01-31 16:40:19,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16425 states. [2022-01-31 16:40:19,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16425 to 15499. [2022-01-31 16:40:19,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15499 states, 15494 states have (on average 1.4775396927843036) internal successors, (22893), 15494 states have internal predecessors, (22893), 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 16:40:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15499 states to 15499 states and 22897 transitions. [2022-01-31 16:40:19,640 INFO L78 Accepts]: Start accepts. Automaton has 15499 states and 22897 transitions. Word has length 712 [2022-01-31 16:40:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:40:19,641 INFO L470 AbstractCegarLoop]: Abstraction has 15499 states and 22897 transitions. [2022-01-31 16:40:19,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 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 16:40:19,641 INFO L276 IsEmpty]: Start isEmpty. Operand 15499 states and 22897 transitions. [2022-01-31 16:40:19,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-01-31 16:40:19,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:40:19,690 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:19,718 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 16:40:19,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:40:19,891 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:40:19,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:40:19,892 INFO L85 PathProgramCache]: Analyzing trace with hash 196231374, now seen corresponding path program 1 times [2022-01-31 16:40:19,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:40:19,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109360877] [2022-01-31 16:40:19,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:40:19,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:40:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:40:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4839 backedges. 2578 proven. 0 refuted. 0 times theorem prover too weak. 2261 trivial. 0 not checked. [2022-01-31 16:40:20,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:40:20,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109360877] [2022-01-31 16:40:20,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109360877] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:40:20,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:40:20,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:40:20,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326274900] [2022-01-31 16:40:20,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:40:20,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:40:20,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:40:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:40:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:40:20,144 INFO L87 Difference]: Start difference. First operand 15499 states and 22897 transitions. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 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 16:40:22,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:24,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:26,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:40:27,375 INFO L93 Difference]: Finished difference Result 17119 states and 25215 transitions. [2022-01-31 16:40:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:40:27,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 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 712 [2022-01-31 16:40:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:40:27,430 INFO L225 Difference]: With dead ends: 17119 [2022-01-31 16:40:27,431 INFO L226 Difference]: Without dead ends: 17119 [2022-01-31 16:40:27,431 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 16:40:27,431 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 44 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:40:27,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 659 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 533 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-01-31 16:40:27,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17119 states. [2022-01-31 16:40:27,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17119 to 16363. [2022-01-31 16:40:27,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16363 states, 16358 states have (on average 1.4770143049272528) internal successors, (24161), 16358 states have internal predecessors, (24161), 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 16:40:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16363 states to 16363 states and 24165 transitions. [2022-01-31 16:40:27,554 INFO L78 Accepts]: Start accepts. Automaton has 16363 states and 24165 transitions. Word has length 712 [2022-01-31 16:40:27,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:40:27,554 INFO L470 AbstractCegarLoop]: Abstraction has 16363 states and 24165 transitions. [2022-01-31 16:40:27,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 4 states have internal predecessors, (216), 1 states have call successors, (3), 2 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 16:40:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 16363 states and 24165 transitions. [2022-01-31 16:40:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2022-01-31 16:40:27,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:40:27,572 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:27,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-31 16:40:27,573 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:40:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:40:27,573 INFO L85 PathProgramCache]: Analyzing trace with hash 773050850, now seen corresponding path program 1 times [2022-01-31 16:40:27,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:40:27,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721755080] [2022-01-31 16:40:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:40:27,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:40:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:40:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1839 proven. 250 refuted. 0 times theorem prover too weak. 2770 trivial. 0 not checked. [2022-01-31 16:40:29,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:40:29,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721755080] [2022-01-31 16:40:29,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721755080] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:40:29,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400342382] [2022-01-31 16:40:29,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:40:29,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:40:29,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:40:29,049 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 16:40:29,049 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 16:40:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:40:30,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 3124 conjuncts, 95 conjunts are in the unsatisfiable core [2022-01-31 16:40:30,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:40:30,462 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:40:30,462 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 16:40:30,555 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:40:30,556 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-01-31 16:40:30,810 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 16:40:31,066 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 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-31 16:40:31,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,135 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-01-31 16:40:31,158 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-01-31 16:40:31,158 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-01-31 16:40:31,166 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:40:31,167 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-01-31 16:40:31,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,683 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-01-31 16:40:31,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,702 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-01-31 16:40:31,702 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-01-31 16:40:31,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,706 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:40:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,757 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:40:31,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,762 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-01-31 16:40:31,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:31,784 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:40:31,785 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-01-31 16:40:32,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:32,443 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-01-31 16:40:32,443 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-01-31 16:40:32,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:32,495 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-01-31 16:40:32,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-01-31 16:40:32,540 INFO L353 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-01-31 16:40:32,540 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-01-31 16:40:34,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,751 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 282 [2022-01-31 16:40:34,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:34,767 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 354 treesize of output 288 [2022-01-31 16:40:34,814 INFO L353 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-01-31 16:40:34,814 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 354 treesize of output 367 [2022-01-31 16:40:38,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,888 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 265 [2022-01-31 16:40:38,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,894 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 271 [2022-01-31 16:40:38,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:38,929 INFO L353 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-01-31 16:40:38,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 344 treesize of output 329 [2022-01-31 16:40:39,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:39,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 260 treesize of output 182 [2022-01-31 16:40:39,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:40:39,203 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 104 [2022-01-31 16:40:39,243 INFO L353 Elim1Store]: treesize reduction 162, result has 24.3 percent of original size [2022-01-31 16:40:39,244 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 132 treesize of output 149 [2022-01-31 16:40:39,357 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-01-31 16:40:39,358 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-01-31 16:40:39,474 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:40:39,475 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 29 treesize of output 11 [2022-01-31 16:40:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1764 proven. 573 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2022-01-31 16:40:39,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:40:43,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:40:43,606 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 338 treesize of output 320 [2022-01-31 16:40:43,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:40:43,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:40:43,610 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 254 [2022-01-31 16:40:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 1895 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-01-31 16:40:46,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400342382] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:40:46,456 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:40:46,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 13] total 40 [2022-01-31 16:40:46,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712631130] [2022-01-31 16:40:46,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:40:46,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-01-31 16:40:46,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:40:46,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-01-31 16:40:46,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1305, Unknown=1, NotChecked=0, Total=1560 [2022-01-31 16:40:46,459 INFO L87 Difference]: Start difference. First operand 16363 states and 24165 transitions. Second operand has 40 states, 40 states have (on average 14.375) internal successors, (575), 39 states have internal predecessors, (575), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:40:47,518 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 16:40:49,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:51,009 WARN L534 Checker$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 16:40:52,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:53,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:56,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:40:58,234 WARN L534 Checker$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 16:41:00,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:41:02,284 WARN L534 Checker$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 16:41:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:16,045 INFO L93 Difference]: Finished difference Result 71136 states and 102782 transitions. [2022-01-31 16:41:16,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-01-31 16:41:16,046 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 14.375) internal successors, (575), 39 states have internal predecessors, (575), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 712 [2022-01-31 16:41:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:16,123 INFO L225 Difference]: With dead ends: 71136 [2022-01-31 16:41:16,124 INFO L226 Difference]: Without dead ends: 71136 [2022-01-31 16:41:16,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1660 GetRequests, 1494 SyntacticMatches, 9 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 9215 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=3425, Invalid=21696, Unknown=1, NotChecked=0, Total=25122 [2022-01-31 16:41:16,125 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 3584 mSDsluCounter, 9270 mSDsCounter, 0 mSdLazyCounter, 9130 mSolverCounterSat, 488 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 9875 SdHoareTripleChecker+Invalid, 13679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 9130 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 4056 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:16,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3584 Valid, 9875 Invalid, 13679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 9130 Invalid, 5 Unknown, 4056 Unchecked, 23.8s Time] [2022-01-31 16:41:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71136 states. [2022-01-31 16:41:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71136 to 50171. [2022-01-31 16:41:16,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50171 states, 50166 states have (on average 1.4791691583941315) internal successors, (74204), 50166 states have internal predecessors, (74204), 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 16:41:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50171 states to 50171 states and 74208 transitions. [2022-01-31 16:41:16,905 INFO L78 Accepts]: Start accepts. Automaton has 50171 states and 74208 transitions. Word has length 712 [2022-01-31 16:41:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:16,906 INFO L470 AbstractCegarLoop]: Abstraction has 50171 states and 74208 transitions. [2022-01-31 16:41:16,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 14.375) internal successors, (575), 39 states have internal predecessors, (575), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:41:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 50171 states and 74208 transitions. [2022-01-31 16:41:16,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2022-01-31 16:41:16,948 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:16,948 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:16,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-31 16:41:17,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-01-31 16:41:17,175 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:17,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:17,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1973591987, now seen corresponding path program 1 times [2022-01-31 16:41:17,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:17,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339088211] [2022-01-31 16:41:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:17,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:17,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4859 backedges. 3051 proven. 0 refuted. 0 times theorem prover too weak. 1808 trivial. 0 not checked. [2022-01-31 16:41:17,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:17,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339088211] [2022-01-31 16:41:17,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339088211] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:41:17,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:41:17,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:41:17,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055600422] [2022-01-31 16:41:17,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:41:17,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:41:17,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:41:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:41:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:41:17,611 INFO L87 Difference]: Start difference. First operand 50171 states and 74208 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 1 states have call successors, (3), 2 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 16:41:20,570 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 16:41:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:41:21,670 INFO L93 Difference]: Finished difference Result 64961 states and 95559 transitions. [2022-01-31 16:41:21,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:41:21,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 1 states have call successors, (3), 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 713 [2022-01-31 16:41:21,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:41:21,732 INFO L225 Difference]: With dead ends: 64961 [2022-01-31 16:41:21,732 INFO L226 Difference]: Without dead ends: 64961 [2022-01-31 16:41:21,732 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 16:41:21,733 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 151 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:41:21,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 627 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:41:21,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64961 states. [2022-01-31 16:41:22,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64961 to 64959. [2022-01-31 16:41:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64959 states, 64954 states have (on average 1.47110262647412) internal successors, (95554), 64954 states have internal predecessors, (95554), 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 16:41:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64959 states to 64959 states and 95558 transitions. [2022-01-31 16:41:22,365 INFO L78 Accepts]: Start accepts. Automaton has 64959 states and 95558 transitions. Word has length 713 [2022-01-31 16:41:22,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:41:22,365 INFO L470 AbstractCegarLoop]: Abstraction has 64959 states and 95558 transitions. [2022-01-31 16:41:22,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 3 states have internal predecessors, (243), 1 states have call successors, (3), 2 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 16:41:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 64959 states and 95558 transitions. [2022-01-31 16:41:22,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2022-01-31 16:41:22,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:41:22,625 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:22,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-31 16:41:22,625 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:41:22,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:41:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1810475920, now seen corresponding path program 1 times [2022-01-31 16:41:22,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:41:22,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815465209] [2022-01-31 16:41:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:22,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:41:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:41:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:23,349 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 3209 proven. 227 refuted. 0 times theorem prover too weak. 1424 trivial. 0 not checked. [2022-01-31 16:41:23,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:41:23,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815465209] [2022-01-31 16:41:23,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815465209] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:41:23,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143886278] [2022-01-31 16:41:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:41:23,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:41:23,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:41:23,351 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:41:23,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-31 16:41:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:41:24,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 3176 conjuncts, 101 conjunts are in the unsatisfiable core [2022-01-31 16:41:24,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:41:24,896 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:24,897 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 16:41:24,979 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-01-31 16:41:24,979 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-01-31 16:41:25,219 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 16:41:25,281 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:25,281 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 16:41:25,351 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 24 treesize of output 20 [2022-01-31 16:41:25,354 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:41:25,354 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 28 [2022-01-31 16:41:25,556 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:25,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:41:25,567 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:25,567 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-01-31 16:41:25,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:25,591 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-01-31 16:41:25,613 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-01-31 16:41:25,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-01-31 16:41:25,622 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-01-31 16:41:25,622 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-01-31 16:41:26,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,091 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-01-31 16:41:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,096 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-01-31 16:41:26,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,112 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-01-31 16:41:26,112 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-01-31 16:41:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,175 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:41:26,176 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-01-31 16:41:26,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,182 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-01-31 16:41:26,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,186 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-01-31 16:41:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,809 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-01-31 16:41:26,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-01-31 16:41:26,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:26,842 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-01-31 16:41:26,842 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-01-31 16:41:26,884 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-01-31 16:41:26,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-01-31 16:41:28,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,516 INFO L353 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-01-31 16:41:28,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 325 treesize of output 344 [2022-01-31 16:41:28,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:28,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 353 treesize of output 293 [2022-01-31 16:41:28,557 INFO L353 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-01-31 16:41:28,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 353 treesize of output 275 [2022-01-31 16:41:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,193 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 320 treesize of output 262 [2022-01-31 16:41:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,221 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-01-31 16:41:32,221 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 320 treesize of output 314 [2022-01-31 16:41:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,227 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 251 [2022-01-31 16:41:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,448 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 196 treesize of output 136 [2022-01-31 16:41:32,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:41:32,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-01-31 16:41:32,474 INFO L353 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-01-31 16:41:32,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 102 [2022-01-31 16:41:32,527 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-01-31 16:41:32,527 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-01-31 16:41:32,642 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-01-31 16:41:32,643 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 29 treesize of output 11 [2022-01-31 16:41:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 1828 proven. 885 refuted. 0 times theorem prover too weak. 2147 trivial. 0 not checked. [2022-01-31 16:41:32,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-31 16:41:43,231 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:41:43,232 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 814 treesize of output 736 [2022-01-31 16:41:43,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,281 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:41:43,281 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 576 treesize of output 532 [2022-01-31 16:41:43,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,384 INFO L353 Elim1Store]: treesize reduction 134, result has 26.0 percent of original size [2022-01-31 16:41:43,385 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 594 treesize of output 490 [2022-01-31 16:41:43,389 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 518 treesize of output 488 [2022-01-31 16:41:43,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,393 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 478 treesize of output 418 [2022-01-31 16:41:43,406 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:41:43,406 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 418 treesize of output 390 [2022-01-31 16:41:43,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,442 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:41:43,442 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 330 treesize of output 326 [2022-01-31 16:41:43,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,514 INFO L353 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2022-01-31 16:41:43,514 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 328 treesize of output 310 [2022-01-31 16:41:43,519 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 312 treesize of output 298 [2022-01-31 16:41:43,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-31 16:41:43,523 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 265 [2022-01-31 16:42:00,435 INFO L353 Elim1Store]: treesize reduction 65, result has 1.5 percent of original size [2022-01-31 16:42:00,436 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 151 treesize of output 1 [2022-01-31 16:42:00,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4860 backedges. 1896 proven. 141 refuted. 0 times theorem prover too weak. 2823 trivial. 0 not checked. [2022-01-31 16:42:00,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143886278] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-31 16:42:00,880 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-31 16:42:00,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19, 15] total 41 [2022-01-31 16:42:00,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800811291] [2022-01-31 16:42:00,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-31 16:42:00,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-01-31 16:42:00,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:42:00,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-01-31 16:42:00,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1428, Unknown=7, NotChecked=0, Total=1640 [2022-01-31 16:42:00,882 INFO L87 Difference]: Start difference. First operand 64959 states and 95558 transitions. Second operand has 41 states, 41 states have (on average 17.29268292682927) internal successors, (709), 40 states have internal predecessors, (709), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:42:02,896 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 16:42:28,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:42:28,271 INFO L93 Difference]: Finished difference Result 261901 states and 376614 transitions. [2022-01-31 16:42:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2022-01-31 16:42:28,272 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 17.29268292682927) internal successors, (709), 40 states have internal predecessors, (709), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 714 [2022-01-31 16:42:28,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:42:28,630 INFO L225 Difference]: With dead ends: 261901 [2022-01-31 16:42:28,631 INFO L226 Difference]: Without dead ends: 261901 [2022-01-31 16:42:28,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1748 GetRequests, 1517 SyntacticMatches, 20 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17303 ImplicationChecksByTransitivity, 37.7s TimeCoverageRelationStatistics Valid=5131, Invalid=40018, Unknown=7, NotChecked=0, Total=45156 [2022-01-31 16:42:28,633 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 2883 mSDsluCounter, 16949 mSDsCounter, 0 mSdLazyCounter, 12878 mSolverCounterSat, 276 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2883 SdHoareTripleChecker+Valid, 17777 SdHoareTripleChecker+Invalid, 17494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 12878 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 4339 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:42:28,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2883 Valid, 17777 Invalid, 17494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 12878 Invalid, 1 Unknown, 4339 Unchecked, 13.3s Time] [2022-01-31 16:42:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261901 states. [2022-01-31 16:42:30,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261901 to 166190. [2022-01-31 16:42:30,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166190 states, 166185 states have (on average 1.4687246141348498) internal successors, (244080), 166185 states have internal predecessors, (244080), 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 16:42:31,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166190 states to 166190 states and 244084 transitions. [2022-01-31 16:42:31,083 INFO L78 Accepts]: Start accepts. Automaton has 166190 states and 244084 transitions. Word has length 714 [2022-01-31 16:42:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:42:31,083 INFO L470 AbstractCegarLoop]: Abstraction has 166190 states and 244084 transitions. [2022-01-31 16:42:31,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 17.29268292682927) internal successors, (709), 40 states have internal predecessors, (709), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:42:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 166190 states and 244084 transitions. [2022-01-31 16:42:31,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2022-01-31 16:42:31,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:42:31,247 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 13, 12, 12, 11, 11, 10, 10, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:31,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-31 16:42:31,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:42:31,448 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:42:31,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:42:31,450 INFO L85 PathProgramCache]: Analyzing trace with hash -354845589, now seen corresponding path program 1 times [2022-01-31 16:42:31,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:42:31,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855649888] [2022-01-31 16:42:31,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:42:31,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:42:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:42:34,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:42:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:42:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 4866 backedges. 2346 proven. 2263 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-01-31 16:42:34,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:42:34,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855649888] [2022-01-31 16:42:34,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855649888] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:42:34,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995162402] [2022-01-31 16:42:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:42:34,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:42:34,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:42:34,217 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:42:34,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-31 16:42:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:42:35,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 3180 conjuncts, 157 conjunts are in the unsatisfiable core [2022-01-31 16:42:35,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:42:35,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:35,998 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-31 16:42:35,998 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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 16:42:36,482 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-31 16:42:36,498 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-31 16:42:36,499 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 76 [2022-01-31 16:42:36,517 INFO L353 Elim1Store]: treesize reduction 25, result has 47.9 percent of original size [2022-01-31 16:42:36,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 61 [2022-01-31 16:42:36,521 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 0 case distinctions, treesize of input 19 treesize of output 11 [2022-01-31 16:42:36,530 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 13 [2022-01-31 16:42:36,534 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 19 [2022-01-31 16:42:36,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:36,591 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 59 [2022-01-31 16:42:36,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:36,627 INFO L353 Elim1Store]: treesize reduction 138, result has 34.6 percent of original size [2022-01-31 16:42:36,627 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 60 treesize of output 101 [2022-01-31 16:42:36,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:36,632 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2022-01-31 16:42:37,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,170 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2022-01-31 16:42:37,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,222 INFO L353 Elim1Store]: treesize reduction 184, result has 28.4 percent of original size [2022-01-31 16:42:37,222 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 80 treesize of output 124 [2022-01-31 16:42:37,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,227 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 80 [2022-01-31 16:42:37,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,367 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 81 [2022-01-31 16:42:37,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,373 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 63 [2022-01-31 16:42:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,410 INFO L353 Elim1Store]: treesize reduction 184, result has 28.4 percent of original size [2022-01-31 16:42:37,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 91 treesize of output 135 [2022-01-31 16:42:37,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,544 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 106 [2022-01-31 16:42:37,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,591 INFO L353 Elim1Store]: treesize reduction 240, result has 20.8 percent of original size [2022-01-31 16:42:37,592 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 118 treesize of output 137 [2022-01-31 16:42:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:37,597 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 87 [2022-01-31 16:42:39,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,391 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 86 [2022-01-31 16:42:39,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,457 INFO L353 Elim1Store]: treesize reduction 308, result has 22.0 percent of original size [2022-01-31 16:42:39,457 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 147 treesize of output 199 [2022-01-31 16:42:39,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,463 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 102 [2022-01-31 16:42:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,614 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 118 [2022-01-31 16:42:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,674 INFO L353 Elim1Store]: treesize reduction 261, result has 25.2 percent of original size [2022-01-31 16:42:39,674 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 164 treesize of output 220 [2022-01-31 16:42:39,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:39,678 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 142 [2022-01-31 16:42:41,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:41,528 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-01-31 16:42:41,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 240 treesize of output 223 [2022-01-31 16:42:41,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:41,565 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-01-31 16:42:41,566 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 205 treesize of output 176 [2022-01-31 16:42:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:41,691 INFO L353 Elim1Store]: treesize reduction 174, result has 43.5 percent of original size [2022-01-31 16:42:41,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 95 treesize of output 194 [2022-01-31 16:42:50,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,344 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 734 treesize of output 626 [2022-01-31 16:42:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,355 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 734 treesize of output 554 [2022-01-31 16:42:50,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:42:50,436 INFO L353 Elim1Store]: treesize reduction 367, result has 18.6 percent of original size [2022-01-31 16:42:50,437 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 734 treesize of output 670 [2022-01-31 16:43:12,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,867 INFO L353 Elim1Store]: treesize reduction 276, result has 20.9 percent of original size [2022-01-31 16:43:12,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 745 treesize of output 669 [2022-01-31 16:43:12,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,878 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 692 treesize of output 532 [2022-01-31 16:43:12,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:12,890 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 679 treesize of output 561 [2022-01-31 16:43:14,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,838 INFO L353 Elim1Store]: treesize reduction 76, result has 31.5 percent of original size [2022-01-31 16:43:14,838 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 523 treesize of output 448 [2022-01-31 16:43:14,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:14,945 INFO L353 Elim1Store]: treesize reduction 442, result has 14.7 percent of original size [2022-01-31 16:43:14,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 456 treesize of output 425 [2022-01-31 16:43:14,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,024 INFO L353 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-01-31 16:43:15,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 466 treesize of output 349 [2022-01-31 16:43:15,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,468 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 228 [2022-01-31 16:43:15,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,522 INFO L353 Elim1Store]: treesize reduction 261, result has 25.2 percent of original size [2022-01-31 16:43:15,522 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 275 treesize of output 319 [2022-01-31 16:43:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:15,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 240 [2022-01-31 16:43:18,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:18,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:18,945 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 279 treesize of output 245 [2022-01-31 16:43:18,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:18,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:18,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,011 INFO L353 Elim1Store]: treesize reduction 215, result has 29.0 percent of original size [2022-01-31 16:43:19,012 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 266 treesize of output 307 [2022-01-31 16:43:19,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 245 [2022-01-31 16:43:19,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,563 INFO L353 Elim1Store]: treesize reduction 208, result has 19.1 percent of original size [2022-01-31 16:43:19,563 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 248 treesize of output 262 [2022-01-31 16:43:19,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,571 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 299 treesize of output 229 [2022-01-31 16:43:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,579 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 232 [2022-01-31 16:43:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 269 [2022-01-31 16:43:19,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,821 INFO L353 Elim1Store]: treesize reduction 194, result has 24.5 percent of original size [2022-01-31 16:43:19,821 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 266 treesize of output 276 [2022-01-31 16:43:19,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:43:19,828 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 202 [2022-01-31 16:44:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 4866 backedges. 3137 proven. 468 refuted. 0 times theorem prover too weak. 1261 trivial. 0 not checked. [2022-01-31 16:44:21,413 INFO L328 TraceCheckSpWp]: Computing backward predicates...