/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.14.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05ce600 [2022-02-23 20:11:45,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-23 20:11:45,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-23 20:11:45,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-23 20:11:45,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-23 20:11:45,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-23 20:11:45,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-23 20:11:45,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-23 20:11:45,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-23 20:11:45,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-23 20:11:45,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-23 20:11:45,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-23 20:11:45,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-23 20:11:45,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-23 20:11:45,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-23 20:11:45,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-23 20:11:45,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-23 20:11:45,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-23 20:11:45,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-23 20:11:45,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-23 20:11:45,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-23 20:11:45,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-23 20:11:45,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-23 20:11:45,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-23 20:11:45,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-23 20:11:45,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-23 20:11:45,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-23 20:11:45,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-23 20:11:45,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-23 20:11:45,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-23 20:11:45,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-23 20:11:45,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-23 20:11:45,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-23 20:11:45,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-23 20:11:45,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-23 20:11:45,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-23 20:11:45,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-23 20:11:45,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-23 20:11:45,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-23 20:11:45,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-23 20:11:45,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-23 20:11:45,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-23 20:11:45,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-23 20:11:45,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-23 20:11:45,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-23 20:11:45,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-23 20:11:45,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:11:45,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-23 20:11:45,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-23 20:11:45,880 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-23 20:11:45,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-23 20:11:46,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-23 20:11:46,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-23 20:11:46,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-23 20:11:46,030 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-23 20:11:46,030 INFO L275 PluginConnector]: CDTParser initialized [2022-02-23 20:11:46,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-02-23 20:11:46,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52199a0bd/671c9158fb24461ead76c109ac620803/FLAGfffed6b79 [2022-02-23 20:11:46,531 INFO L306 CDTParser]: Found 1 translation units. [2022-02-23 20:11:46,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-02-23 20:11:46,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52199a0bd/671c9158fb24461ead76c109ac620803/FLAGfffed6b79 [2022-02-23 20:11:46,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52199a0bd/671c9158fb24461ead76c109ac620803 [2022-02-23 20:11:46,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-23 20:11:46,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-23 20:11:46,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-23 20:11:46,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-23 20:11:46,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-23 20:11:46,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:11:46" (1/1) ... [2022-02-23 20:11:46,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a19be5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:46, skipping insertion in model container [2022-02-23 20:11:46,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 08:11:46" (1/1) ... [2022-02-23 20:11:46,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-23 20:11:46,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-23 20:11:47,188 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.14.i.cil-2.c[76259,76272] [2022-02-23 20:11:47,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:11:47,203 INFO L203 MainTranslator]: Completed pre-run [2022-02-23 20:11:47,276 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.14.i.cil-2.c[76259,76272] [2022-02-23 20:11:47,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-23 20:11:47,289 INFO L208 MainTranslator]: Completed translation [2022-02-23 20:11:47,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47 WrapperNode [2022-02-23 20:11:47,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-23 20:11:47,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-23 20:11:47,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-23 20:11:47,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-23 20:11:47,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-23 20:11:47,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-23 20:11:47,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-23 20:11:47,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-23 20:11:47,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (1/1) ... [2022-02-23 20:11:47,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-23 20:11:47,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:11:47,423 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) [2022-02-23 20:11:47,442 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 [2022-02-23 20:11:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-23 20:11:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-23 20:11:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-23 20:11:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-23 20:11:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-23 20:11:47,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-23 20:11:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-23 20:11:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-23 20:11:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-23 20:11:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-23 20:11:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-23 20:11:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-23 20:11:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-23 20:11:47,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-23 20:11:47,456 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-23 20:11:47,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-23 20:11:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-23 20:11:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-23 20:11:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-23 20:11:47,589 INFO L234 CfgBuilder]: Building ICFG [2022-02-23 20:11:47,590 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-23 20:11:48,158 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-23 20:11:48,512 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-23 20:11:48,512 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-23 20:11:48,531 INFO L275 CfgBuilder]: Performing block encoding [2022-02-23 20:11:48,540 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-23 20:11:48,540 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-23 20:11:48,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:11:48 BoogieIcfgContainer [2022-02-23 20:11:48,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-23 20:11:48,542 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-23 20:11:48,542 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-23 20:11:48,543 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-23 20:11:48,545 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:11:48" (1/1) ... [2022-02-23 20:11:48,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:11:48 BasicIcfg [2022-02-23 20:11:48,595 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-23 20:11:48,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-23 20:11:48,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-23 20:11:48,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-23 20:11:48,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 08:11:46" (1/4) ... [2022-02-23 20:11:48,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c26299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:11:48, skipping insertion in model container [2022-02-23 20:11:48,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 08:11:47" (2/4) ... [2022-02-23 20:11:48,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c26299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 08:11:48, skipping insertion in model container [2022-02-23 20:11:48,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 08:11:48" (3/4) ... [2022-02-23 20:11:48,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c26299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 08:11:48, skipping insertion in model container [2022-02-23 20:11:48,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.02 08:11:48" (4/4) ... [2022-02-23 20:11:48,602 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cJordan [2022-02-23 20:11:48,606 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-23 20:11:48,606 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-23 20:11:48,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-23 20:11:48,638 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 [2022-02-23 20:11:48,638 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-23 20:11:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 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) [2022-02-23 20:11:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-23 20:11:48,656 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:48,656 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] [2022-02-23 20:11:48,656 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:48,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:48,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-02-23 20:11:48,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:48,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598222164] [2022-02-23 20:11:48,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:48,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:49,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:49,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:49,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598222164] [2022-02-23 20:11:49,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598222164] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:49,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:49,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:49,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028936165] [2022-02-23 20:11:49,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:49,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:49,110 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:49,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:49,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:49,146 INFO L87 Difference]: Start difference. First operand has 163 states, 155 states have (on average 1.7161290322580645) internal successors, (266), 156 states have internal predecessors, (266), 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 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:51,000 INFO L93 Difference]: Finished difference Result 297 states and 497 transitions. [2022-02-23 20:11:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:51,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-02-23 20:11:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:51,010 INFO L225 Difference]: With dead ends: 297 [2022-02-23 20:11:51,010 INFO L226 Difference]: Without dead ends: 271 [2022-02-23 20:11:51,012 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 [2022-02-23 20:11:51,015 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 164 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:51,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 493 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-23 20:11:51,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-23 20:11:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 187. [2022-02-23 20:11:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 182 states have (on average 1.6153846153846154) internal successors, (294), 182 states have internal predecessors, (294), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 298 transitions. [2022-02-23 20:11:51,047 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 298 transitions. Word has length 49 [2022-02-23 20:11:51,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:51,048 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 298 transitions. [2022-02-23 20:11:51,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 298 transitions. [2022-02-23 20:11:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-23 20:11:51,049 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:51,049 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] [2022-02-23 20:11:51,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-23 20:11:51,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:51,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:51,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1256262427, now seen corresponding path program 1 times [2022-02-23 20:11:51,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:51,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473645733] [2022-02-23 20:11:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:51,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:51,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:51,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:51,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473645733] [2022-02-23 20:11:51,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473645733] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:51,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:51,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:51,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735119527] [2022-02-23 20:11:51,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:51,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:51,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:51,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:51,206 INFO L87 Difference]: Start difference. First operand 187 states and 298 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:53,195 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 [] [2022-02-23 20:11:53,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:53,538 INFO L93 Difference]: Finished difference Result 215 states and 338 transitions. [2022-02-23 20:11:53,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:53,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-23 20:11:53,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:53,540 INFO L225 Difference]: With dead ends: 215 [2022-02-23 20:11:53,540 INFO L226 Difference]: Without dead ends: 215 [2022-02-23 20:11:53,540 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 [2022-02-23 20:11:53,541 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:53,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 511 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:11:53,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-02-23 20:11:53,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-02-23 20:11:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.621761658031088) internal successors, (313), 193 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:53,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 317 transitions. [2022-02-23 20:11:53,549 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 317 transitions. Word has length 50 [2022-02-23 20:11:53,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:53,549 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 317 transitions. [2022-02-23 20:11:53,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:53,550 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 317 transitions. [2022-02-23 20:11:53,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-23 20:11:53,551 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:53,551 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] [2022-02-23 20:11:53,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-23 20:11:53,551 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash 821038722, now seen corresponding path program 1 times [2022-02-23 20:11:53,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:53,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639148224] [2022-02-23 20:11:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:53,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:53,721 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:53,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:53,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639148224] [2022-02-23 20:11:53,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639148224] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:53,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:53,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:53,722 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3053476] [2022-02-23 20:11:53,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:53,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:53,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:53,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:53,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:53,723 INFO L87 Difference]: Start difference. First operand 198 states and 317 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:57,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:58,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:11:58,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:11:58,519 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-02-23 20:11:58,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:11:58,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-02-23 20:11:58,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:11:58,521 INFO L225 Difference]: With dead ends: 215 [2022-02-23 20:11:58,521 INFO L226 Difference]: Without dead ends: 215 [2022-02-23 20:11:58,521 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 [2022-02-23 20:11:58,522 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 24 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:11:58,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-23 20:11:58,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-02-23 20:11:58,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-02-23 20:11:58,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.616580310880829) internal successors, (312), 193 states have internal predecessors, (312), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 316 transitions. [2022-02-23 20:11:58,529 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 316 transitions. Word has length 63 [2022-02-23 20:11:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:11:58,529 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 316 transitions. [2022-02-23 20:11:58,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:11:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 316 transitions. [2022-02-23 20:11:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:11:58,531 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:11:58,531 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] [2022-02-23 20:11:58,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-23 20:11:58,531 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:11:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:11:58,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2114147329, now seen corresponding path program 1 times [2022-02-23 20:11:58,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:11:58,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724799673] [2022-02-23 20:11:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:11:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:11:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:58,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:11:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:11:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:11:58,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:11:58,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724799673] [2022-02-23 20:11:58,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724799673] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:11:58,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:11:58,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:11:58,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362085844] [2022-02-23 20:11:58,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:11:58,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:11:58,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:11:58,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:11:58,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:11:58,624 INFO L87 Difference]: Start difference. First operand 198 states and 316 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) [2022-02-23 20:12:01,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:01,189 INFO L93 Difference]: Finished difference Result 214 states and 335 transitions. [2022-02-23 20:12:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:01,190 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 [2022-02-23 20:12:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:01,191 INFO L225 Difference]: With dead ends: 214 [2022-02-23 20:12:01,191 INFO L226 Difference]: Without dead ends: 214 [2022-02-23 20:12:01,191 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 [2022-02-23 20:12:01,192 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:01,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-02-23 20:12:01,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-02-23 20:12:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 198. [2022-02-23 20:12:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 193 states have (on average 1.61139896373057) internal successors, (311), 193 states have internal predecessors, (311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 315 transitions. [2022-02-23 20:12:01,198 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 315 transitions. Word has length 64 [2022-02-23 20:12:01,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:01,198 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 315 transitions. [2022-02-23 20:12:01,198 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) [2022-02-23 20:12:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 315 transitions. [2022-02-23 20:12:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:12:01,200 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:01,200 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] [2022-02-23 20:12:01,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-23 20:12:01,200 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:01,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:01,200 INFO L85 PathProgramCache]: Analyzing trace with hash 826373151, now seen corresponding path program 1 times [2022-02-23 20:12:01,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:01,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356971817] [2022-02-23 20:12:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:01,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:01,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:01,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356971817] [2022-02-23 20:12:01,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356971817] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:01,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:01,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:01,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384067476] [2022-02-23 20:12:01,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:01,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:01,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:01,285 INFO L87 Difference]: Start difference. First operand 198 states and 315 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) [2022-02-23 20:12:03,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:06,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:06,778 INFO L93 Difference]: Finished difference Result 321 states and 506 transitions. [2022-02-23 20:12:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:06,778 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 [2022-02-23 20:12:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:06,780 INFO L225 Difference]: With dead ends: 321 [2022-02-23 20:12:06,780 INFO L226 Difference]: Without dead ends: 321 [2022-02-23 20:12:06,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:06,780 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:06,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:12:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-23 20:12:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 210. [2022-02-23 20:12:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 205 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-02-23 20:12:06,787 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 64 [2022-02-23 20:12:06,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:06,787 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-02-23 20:12:06,787 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) [2022-02-23 20:12:06,787 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-02-23 20:12:06,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:12:06,788 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:06,788 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] [2022-02-23 20:12:06,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-23 20:12:06,788 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:06,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash -230789025, now seen corresponding path program 1 times [2022-02-23 20:12:06,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:06,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417396306] [2022-02-23 20:12:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:06,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:06,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:06,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417396306] [2022-02-23 20:12:06,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417396306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:06,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:06,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:06,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110750747] [2022-02-23 20:12:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:06,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:06,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:06,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:06,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:06,878 INFO L87 Difference]: Start difference. First operand 210 states and 331 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) [2022-02-23 20:12:09,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:11,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:11,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:11,820 INFO L93 Difference]: Finished difference Result 321 states and 503 transitions. [2022-02-23 20:12:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:11,820 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 [2022-02-23 20:12:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:11,822 INFO L225 Difference]: With dead ends: 321 [2022-02-23 20:12:11,822 INFO L226 Difference]: Without dead ends: 321 [2022-02-23 20:12:11,822 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 [2022-02-23 20:12:11,822 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 153 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:11,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-23 20:12:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-23 20:12:11,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 215. [2022-02-23 20:12:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 210 states have internal predecessors, (334), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:11,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 338 transitions. [2022-02-23 20:12:11,828 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 338 transitions. Word has length 64 [2022-02-23 20:12:11,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:11,828 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 338 transitions. [2022-02-23 20:12:11,828 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) [2022-02-23 20:12:11,828 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 338 transitions. [2022-02-23 20:12:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-23 20:12:11,829 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:11,829 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] [2022-02-23 20:12:11,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-23 20:12:11,829 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:11,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:11,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1540051073, now seen corresponding path program 1 times [2022-02-23 20:12:11,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:11,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728798826] [2022-02-23 20:12:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:11,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:11,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:11,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728798826] [2022-02-23 20:12:11,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728798826] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:11,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:11,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:11,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995952282] [2022-02-23 20:12:11,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:11,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:11,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:11,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:11,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:11,928 INFO L87 Difference]: Start difference. First operand 215 states and 338 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) [2022-02-23 20:12:13,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:14,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:16,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:17,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:18,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:18,172 INFO L93 Difference]: Finished difference Result 320 states and 499 transitions. [2022-02-23 20:12:18,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:18,173 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 [2022-02-23 20:12:18,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:18,176 INFO L225 Difference]: With dead ends: 320 [2022-02-23 20:12:18,176 INFO L226 Difference]: Without dead ends: 320 [2022-02-23 20:12:18,177 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 [2022-02-23 20:12:18,178 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 151 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:18,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-23 20:12:18,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-23 20:12:18,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-02-23 20:12:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5781990521327014) internal successors, (333), 211 states have internal predecessors, (333), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions. [2022-02-23 20:12:18,183 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 64 [2022-02-23 20:12:18,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:18,183 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 337 transitions. [2022-02-23 20:12:18,184 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) [2022-02-23 20:12:18,184 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions. [2022-02-23 20:12:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-23 20:12:18,184 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:18,184 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] [2022-02-23 20:12:18,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-23 20:12:18,185 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:18,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:18,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1577451682, now seen corresponding path program 1 times [2022-02-23 20:12:18,185 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:18,185 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488329840] [2022-02-23 20:12:18,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:18,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:18,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:18,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488329840] [2022-02-23 20:12:18,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488329840] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:18,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:18,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:18,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263127851] [2022-02-23 20:12:18,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:18,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:18,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:18,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:18,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:18,300 INFO L87 Difference]: Start difference. First operand 216 states and 337 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) [2022-02-23 20:12:19,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:21,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:22,325 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 [] [2022-02-23 20:12:22,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:22,770 INFO L93 Difference]: Finished difference Result 320 states and 496 transitions. [2022-02-23 20:12:22,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:22,770 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 [2022-02-23 20:12:22,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:22,771 INFO L225 Difference]: With dead ends: 320 [2022-02-23 20:12:22,771 INFO L226 Difference]: Without dead ends: 320 [2022-02-23 20:12:22,772 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 [2022-02-23 20:12:22,772 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:22,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-23 20:12:22,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-23 20:12:22,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-02-23 20:12:22,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5639810426540284) internal successors, (330), 211 states have internal predecessors, (330), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:22,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 334 transitions. [2022-02-23 20:12:22,777 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 334 transitions. Word has length 65 [2022-02-23 20:12:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:22,777 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 334 transitions. [2022-02-23 20:12:22,777 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) [2022-02-23 20:12:22,777 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 334 transitions. [2022-02-23 20:12:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-23 20:12:22,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:22,778 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] [2022-02-23 20:12:22,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-23 20:12:22,778 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:22,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:22,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1615094397, now seen corresponding path program 1 times [2022-02-23 20:12:22,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:22,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67807941] [2022-02-23 20:12:22,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:22,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:22,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:22,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:22,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67807941] [2022-02-23 20:12:22,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67807941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:22,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:22,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:22,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289327627] [2022-02-23 20:12:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:22,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:22,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:22,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:22,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:22,889 INFO L87 Difference]: Start difference. First operand 216 states and 334 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) [2022-02-23 20:12:23,915 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 [] [2022-02-23 20:12:25,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:27,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:28,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:28,535 INFO L93 Difference]: Finished difference Result 229 states and 350 transitions. [2022-02-23 20:12:28,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:28,535 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 [2022-02-23 20:12:28,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:28,536 INFO L225 Difference]: With dead ends: 229 [2022-02-23 20:12:28,536 INFO L226 Difference]: Without dead ends: 229 [2022-02-23 20:12:28,536 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 [2022-02-23 20:12:28,537 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 20 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:28,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-23 20:12:28,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-02-23 20:12:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-02-23 20:12:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5592417061611374) internal successors, (329), 211 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:28,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2022-02-23 20:12:28,541 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 66 [2022-02-23 20:12:28,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:28,541 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2022-02-23 20:12:28,541 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) [2022-02-23 20:12:28,541 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2022-02-23 20:12:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:12:28,542 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:28,542 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] [2022-02-23 20:12:28,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-23 20:12:28,542 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash -181923963, now seen corresponding path program 1 times [2022-02-23 20:12:28,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:28,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005429337] [2022-02-23 20:12:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:28,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:28,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:28,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005429337] [2022-02-23 20:12:28,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005429337] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:28,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:28,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:28,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491455136] [2022-02-23 20:12:28,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:28,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:28,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:28,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:28,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:28,633 INFO L87 Difference]: Start difference. First operand 216 states and 333 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) [2022-02-23 20:12:29,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:31,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:33,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:35,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:35,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:35,819 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2022-02-23 20:12:35,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:35,820 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 [2022-02-23 20:12:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:35,821 INFO L225 Difference]: With dead ends: 219 [2022-02-23 20:12:35,821 INFO L226 Difference]: Without dead ends: 219 [2022-02-23 20:12:35,821 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 [2022-02-23 20:12:35,821 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:35,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 350 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-02-23 20:12:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-02-23 20:12:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-02-23 20:12:35,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 211 states have (on average 1.5545023696682465) internal successors, (328), 211 states have internal predecessors, (328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:35,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 332 transitions. [2022-02-23 20:12:35,825 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 332 transitions. Word has length 67 [2022-02-23 20:12:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:35,825 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 332 transitions. [2022-02-23 20:12:35,826 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) [2022-02-23 20:12:35,826 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 332 transitions. [2022-02-23 20:12:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-23 20:12:35,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:35,826 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] [2022-02-23 20:12:35,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-23 20:12:35,826 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:35,827 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-02-23 20:12:35,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:35,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063039954] [2022-02-23 20:12:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:35,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:35,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-23 20:12:35,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:35,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063039954] [2022-02-23 20:12:35,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063039954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:35,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:35,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:35,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166246174] [2022-02-23 20:12:35,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:35,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:35,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:35,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:35,949 INFO L87 Difference]: Start difference. First operand 216 states and 332 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) [2022-02-23 20:12:38,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:40,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:42,427 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 [] [2022-02-23 20:12:42,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:42,845 INFO L93 Difference]: Finished difference Result 320 states and 493 transitions. [2022-02-23 20:12:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:42,846 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 [2022-02-23 20:12:42,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:42,847 INFO L225 Difference]: With dead ends: 320 [2022-02-23 20:12:42,847 INFO L226 Difference]: Without dead ends: 320 [2022-02-23 20:12:42,847 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 [2022-02-23 20:12:42,848 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 128 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:42,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-02-23 20:12:42,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-02-23 20:12:42,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 238. [2022-02-23 20:12:42,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.592274678111588) internal successors, (371), 233 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 375 transitions. [2022-02-23 20:12:42,852 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 375 transitions. Word has length 67 [2022-02-23 20:12:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:42,852 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 375 transitions. [2022-02-23 20:12:42,852 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) [2022-02-23 20:12:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 375 transitions. [2022-02-23 20:12:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-23 20:12:42,853 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:42,853 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-02-23 20:12:42,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-23 20:12:42,853 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:42,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:42,854 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-02-23 20:12:42,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:42,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360686403] [2022-02-23 20:12:42,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:42,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-23 20:12:42,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:42,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360686403] [2022-02-23 20:12:42,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360686403] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:42,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:42,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:42,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506831957] [2022-02-23 20:12:42,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:42,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:42,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:42,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:42,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:42,938 INFO L87 Difference]: Start difference. First operand 238 states and 375 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) [2022-02-23 20:12:44,956 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 [] [2022-02-23 20:12:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:45,302 INFO L93 Difference]: Finished difference Result 280 states and 435 transitions. [2022-02-23 20:12:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:45,302 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 95 [2022-02-23 20:12:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:45,304 INFO L225 Difference]: With dead ends: 280 [2022-02-23 20:12:45,304 INFO L226 Difference]: Without dead ends: 280 [2022-02-23 20:12:45,304 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 [2022-02-23 20:12:45,304 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 30 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:45,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-23 20:12:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-02-23 20:12:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2022-02-23 20:12:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.588235294117647) internal successors, (405), 255 states have internal predecessors, (405), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:45,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 409 transitions. [2022-02-23 20:12:45,309 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 409 transitions. Word has length 95 [2022-02-23 20:12:45,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:45,309 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 409 transitions. [2022-02-23 20:12:45,309 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) [2022-02-23 20:12:45,309 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 409 transitions. [2022-02-23 20:12:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-23 20:12:45,310 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:45,310 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:45,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-23 20:12:45,310 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:45,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 664162408, now seen corresponding path program 1 times [2022-02-23 20:12:45,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:45,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726485281] [2022-02-23 20:12:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:45,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:45,392 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:12:45,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:45,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726485281] [2022-02-23 20:12:45,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726485281] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:45,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:45,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:45,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450222448] [2022-02-23 20:12:45,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:45,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:45,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:45,394 INFO L87 Difference]: Start difference. First operand 260 states and 409 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:46,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:48,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:50,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:50,769 INFO L93 Difference]: Finished difference Result 380 states and 591 transitions. [2022-02-23 20:12:50,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:50,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-02-23 20:12:50,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:50,770 INFO L225 Difference]: With dead ends: 380 [2022-02-23 20:12:50,770 INFO L226 Difference]: Without dead ends: 380 [2022-02-23 20:12:50,770 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 [2022-02-23 20:12:50,771 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 151 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:50,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 634 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 611 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:12:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-02-23 20:12:50,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2022-02-23 20:12:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5756457564575646) internal successors, (427), 271 states have internal predecessors, (427), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:50,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 431 transitions. [2022-02-23 20:12:50,775 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 431 transitions. Word has length 108 [2022-02-23 20:12:50,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:50,776 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 431 transitions. [2022-02-23 20:12:50,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 431 transitions. [2022-02-23 20:12:50,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-23 20:12:50,777 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:50,777 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:50,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-23 20:12:50,777 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:50,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-02-23 20:12:50,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:50,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988574051] [2022-02-23 20:12:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:50,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:50,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-23 20:12:50,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:50,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988574051] [2022-02-23 20:12:50,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988574051] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:50,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:50,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:12:50,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458441093] [2022-02-23 20:12:50,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:50,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:12:50,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:50,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:12:50,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:12:50,866 INFO L87 Difference]: Start difference. First operand 276 states and 431 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:52,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:54,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:12:55,883 INFO L93 Difference]: Finished difference Result 289 states and 446 transitions. [2022-02-23 20:12:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:12:55,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 109 [2022-02-23 20:12:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:12:55,885 INFO L225 Difference]: With dead ends: 289 [2022-02-23 20:12:55,885 INFO L226 Difference]: Without dead ends: 289 [2022-02-23 20:12:55,885 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 [2022-02-23 20:12:55,885 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:12:55,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 600 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-23 20:12:55,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-02-23 20:12:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-02-23 20:12:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 271 states have (on average 1.5719557195571956) internal successors, (426), 271 states have internal predecessors, (426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 430 transitions. [2022-02-23 20:12:55,889 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 430 transitions. Word has length 109 [2022-02-23 20:12:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:12:55,890 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 430 transitions. [2022-02-23 20:12:55,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:12:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 430 transitions. [2022-02-23 20:12:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-02-23 20:12:55,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:12:55,891 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:12:55,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-23 20:12:55,891 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:12:55,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:12:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-02-23 20:12:55,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:12:55,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265707230] [2022-02-23 20:12:55,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:12:55,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:12:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:55,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:12:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:12:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-02-23 20:12:55,994 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:12:55,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265707230] [2022-02-23 20:12:55,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265707230] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:12:55,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:12:55,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:12:55,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924824380] [2022-02-23 20:12:55,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:12:55,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:12:55,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:12:55,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:12:55,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:12:55,996 INFO L87 Difference]: Start difference. First operand 276 states and 430 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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) [2022-02-23 20:12:57,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:12:59,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:01,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:02,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:03,579 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 [] [2022-02-23 20:13:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:03,956 INFO L93 Difference]: Finished difference Result 285 states and 441 transitions. [2022-02-23 20:13:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-23 20:13:03,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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 110 [2022-02-23 20:13:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:03,958 INFO L225 Difference]: With dead ends: 285 [2022-02-23 20:13:03,958 INFO L226 Difference]: Without dead ends: 285 [2022-02-23 20:13:03,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-23 20:13:03,958 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:03,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-02-23 20:13:03,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-02-23 20:13:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-02-23 20:13:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5607142857142857) internal successors, (437), 280 states have internal predecessors, (437), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-02-23 20:13:03,963 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 110 [2022-02-23 20:13:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:03,963 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-02-23 20:13:03,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 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) [2022-02-23 20:13:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-02-23 20:13:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-02-23 20:13:03,964 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:03,964 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:03,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-23 20:13:03,964 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1418030591, now seen corresponding path program 1 times [2022-02-23 20:13:03,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:03,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917180588] [2022-02-23 20:13:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:03,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:04,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:04,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:13:04,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:04,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917180588] [2022-02-23 20:13:04,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917180588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:04,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:04,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:04,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341336596] [2022-02-23 20:13:04,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:04,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:04,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:04,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:04,081 INFO L87 Difference]: Start difference. First operand 285 states and 441 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) [2022-02-23 20:13:05,434 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 [] [2022-02-23 20:13:06,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:09,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:09,507 INFO L93 Difference]: Finished difference Result 376 states and 566 transitions. [2022-02-23 20:13:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:09,507 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 112 [2022-02-23 20:13:09,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:09,508 INFO L225 Difference]: With dead ends: 376 [2022-02-23 20:13:09,509 INFO L226 Difference]: Without dead ends: 376 [2022-02-23 20:13:09,509 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 [2022-02-23 20:13:09,509 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 153 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:09,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-23 20:13:09,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-02-23 20:13:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 285. [2022-02-23 20:13:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.5464285714285715) internal successors, (433), 280 states have internal predecessors, (433), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:09,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 437 transitions. [2022-02-23 20:13:09,514 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 437 transitions. Word has length 112 [2022-02-23 20:13:09,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:09,514 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 437 transitions. [2022-02-23 20:13:09,514 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) [2022-02-23 20:13:09,514 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 437 transitions. [2022-02-23 20:13:09,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-02-23 20:13:09,515 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:09,515 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:09,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-23 20:13:09,515 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:09,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:09,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-02-23 20:13:09,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:09,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90196261] [2022-02-23 20:13:09,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:09,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:09,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-23 20:13:09,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:09,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90196261] [2022-02-23 20:13:09,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90196261] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:09,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:09,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:09,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554734211] [2022-02-23 20:13:09,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:09,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:09,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:09,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:09,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:09,606 INFO L87 Difference]: Start difference. First operand 285 states and 437 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) [2022-02-23 20:13:12,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:12,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:12,858 INFO L93 Difference]: Finished difference Result 302 states and 458 transitions. [2022-02-23 20:13:12,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:12,858 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 113 [2022-02-23 20:13:12,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:12,859 INFO L225 Difference]: With dead ends: 302 [2022-02-23 20:13:12,859 INFO L226 Difference]: Without dead ends: 302 [2022-02-23 20:13:12,860 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 [2022-02-23 20:13:12,860 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:12,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-02-23 20:13:12,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-02-23 20:13:12,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-02-23 20:13:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 280 states have (on average 1.542857142857143) internal successors, (432), 280 states have internal predecessors, (432), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2022-02-23 20:13:12,864 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 113 [2022-02-23 20:13:12,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:12,864 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2022-02-23 20:13:12,864 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) [2022-02-23 20:13:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2022-02-23 20:13:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-23 20:13:12,865 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:12,865 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] [2022-02-23 20:13:12,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-23 20:13:12,865 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:12,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-02-23 20:13:12,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:12,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618687006] [2022-02-23 20:13:12,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:12,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:12,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:12,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618687006] [2022-02-23 20:13:12,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618687006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:12,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:12,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:12,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904270547] [2022-02-23 20:13:12,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:12,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:12,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:12,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:12,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:12,959 INFO L87 Difference]: Start difference. First operand 285 states and 436 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:14,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:15,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:16,870 INFO L93 Difference]: Finished difference Result 392 states and 595 transitions. [2022-02-23 20:13:16,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:16,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 117 [2022-02-23 20:13:16,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:16,872 INFO L225 Difference]: With dead ends: 392 [2022-02-23 20:13:16,872 INFO L226 Difference]: Without dead ends: 392 [2022-02-23 20:13:16,872 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 [2022-02-23 20:13:16,873 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:16,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 535 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:13:16,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-02-23 20:13:16,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 319. [2022-02-23 20:13:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 314 states have (on average 1.5477707006369428) internal successors, (486), 314 states have internal predecessors, (486), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 490 transitions. [2022-02-23 20:13:16,877 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 490 transitions. Word has length 117 [2022-02-23 20:13:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:16,877 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 490 transitions. [2022-02-23 20:13:16,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 490 transitions. [2022-02-23 20:13:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-23 20:13:16,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:16,878 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] [2022-02-23 20:13:16,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-23 20:13:16,878 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:16,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:16,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-02-23 20:13:16,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:16,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203695522] [2022-02-23 20:13:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:16,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:16,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:16,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203695522] [2022-02-23 20:13:16,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203695522] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:16,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:16,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:16,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257332995] [2022-02-23 20:13:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:16,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:16,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:16,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:16,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:16,989 INFO L87 Difference]: Start difference. First operand 319 states and 490 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:18,407 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 [] [2022-02-23 20:13:20,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:21,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:23,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:23,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:23,487 INFO L93 Difference]: Finished difference Result 486 states and 747 transitions. [2022-02-23 20:13:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:23,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 117 [2022-02-23 20:13:23,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:23,489 INFO L225 Difference]: With dead ends: 486 [2022-02-23 20:13:23,489 INFO L226 Difference]: Without dead ends: 486 [2022-02-23 20:13:23,489 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 [2022-02-23 20:13:23,489 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 133 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:23,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 406 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-02-23 20:13:23,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-02-23 20:13:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 349. [2022-02-23 20:13:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.558139534883721) internal successors, (536), 344 states have internal predecessors, (536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:23,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 540 transitions. [2022-02-23 20:13:23,494 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 540 transitions. Word has length 117 [2022-02-23 20:13:23,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:23,494 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 540 transitions. [2022-02-23 20:13:23,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 540 transitions. [2022-02-23 20:13:23,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-23 20:13:23,495 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:23,495 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:13:23,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-23 20:13:23,495 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:23,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:23,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-02-23 20:13:23,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:23,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640796970] [2022-02-23 20:13:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:23,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-23 20:13:23,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:23,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640796970] [2022-02-23 20:13:23,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640796970] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:23,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:23,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:23,582 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459645426] [2022-02-23 20:13:23,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:23,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:23,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:23,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:23,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:23,583 INFO L87 Difference]: Start difference. First operand 349 states and 540 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) [2022-02-23 20:13:26,677 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 [] [2022-02-23 20:13:27,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:27,939 INFO L93 Difference]: Finished difference Result 430 states and 651 transitions. [2022-02-23 20:13:27,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:27,939 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 122 [2022-02-23 20:13:27,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:27,940 INFO L225 Difference]: With dead ends: 430 [2022-02-23 20:13:27,940 INFO L226 Difference]: Without dead ends: 430 [2022-02-23 20:13:27,941 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 [2022-02-23 20:13:27,941 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:27,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-23 20:13:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-02-23 20:13:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 349. [2022-02-23 20:13:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 344 states have (on average 1.5406976744186047) internal successors, (530), 344 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:27,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 534 transitions. [2022-02-23 20:13:27,946 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 534 transitions. Word has length 122 [2022-02-23 20:13:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:27,946 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 534 transitions. [2022-02-23 20:13:27,946 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) [2022-02-23 20:13:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 534 transitions. [2022-02-23 20:13:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-23 20:13:27,947 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:27,947 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] [2022-02-23 20:13:27,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-23 20:13:27,947 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-02-23 20:13:27,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:27,947 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272890536] [2022-02-23 20:13:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:27,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:28,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:28,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272890536] [2022-02-23 20:13:28,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272890536] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:28,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:28,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:28,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066474883] [2022-02-23 20:13:28,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:28,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:28,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:28,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:28,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:28,032 INFO L87 Difference]: Start difference. First operand 349 states and 534 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:30,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:32,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:34,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:34,191 INFO L93 Difference]: Finished difference Result 446 states and 679 transitions. [2022-02-23 20:13:34,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:34,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-23 20:13:34,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:34,193 INFO L225 Difference]: With dead ends: 446 [2022-02-23 20:13:34,193 INFO L226 Difference]: Without dead ends: 446 [2022-02-23 20:13:34,193 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 [2022-02-23 20:13:34,193 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 87 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:34,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-23 20:13:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-02-23 20:13:34,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 388. [2022-02-23 20:13:34,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 383 states have (on average 1.5456919060052219) internal successors, (592), 383 states have internal predecessors, (592), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:34,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 596 transitions. [2022-02-23 20:13:34,198 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 596 transitions. Word has length 123 [2022-02-23 20:13:34,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:34,198 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 596 transitions. [2022-02-23 20:13:34,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:34,199 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 596 transitions. [2022-02-23 20:13:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-23 20:13:34,199 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:34,199 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] [2022-02-23 20:13:34,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-23 20:13:34,200 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:34,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:34,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2124891711, now seen corresponding path program 1 times [2022-02-23 20:13:34,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:34,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30366137] [2022-02-23 20:13:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:34,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:34,282 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:34,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:34,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30366137] [2022-02-23 20:13:34,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30366137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:34,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:34,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:34,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120432765] [2022-02-23 20:13:34,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:34,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:34,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:34,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:34,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:34,283 INFO L87 Difference]: Start difference. First operand 388 states and 596 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:35,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:37,951 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-02-23 20:13:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:37,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-23 20:13:37,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:37,953 INFO L225 Difference]: With dead ends: 509 [2022-02-23 20:13:37,953 INFO L226 Difference]: Without dead ends: 509 [2022-02-23 20:13:37,954 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 [2022-02-23 20:13:37,954 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:37,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 376 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-23 20:13:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-02-23 20:13:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 386. [2022-02-23 20:13:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5459317585301837) internal successors, (589), 381 states have internal predecessors, (589), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:37,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 593 transitions. [2022-02-23 20:13:37,959 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 593 transitions. Word has length 123 [2022-02-23 20:13:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:37,959 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 593 transitions. [2022-02-23 20:13:37,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 593 transitions. [2022-02-23 20:13:37,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-02-23 20:13:37,960 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:37,960 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] [2022-02-23 20:13:37,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-23 20:13:37,960 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-02-23 20:13:37,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:37,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185175936] [2022-02-23 20:13:37,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:37,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:38,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:38,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:38,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185175936] [2022-02-23 20:13:38,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185175936] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:38,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:38,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:38,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706175516] [2022-02-23 20:13:38,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:38,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:38,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:38,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:38,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:38,058 INFO L87 Difference]: Start difference. First operand 386 states and 593 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:41,702 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 [] [2022-02-23 20:13:43,724 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 [] [2022-02-23 20:13:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:44,116 INFO L93 Difference]: Finished difference Result 467 states and 708 transitions. [2022-02-23 20:13:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:44,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-02-23 20:13:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:44,117 INFO L225 Difference]: With dead ends: 467 [2022-02-23 20:13:44,118 INFO L226 Difference]: Without dead ends: 467 [2022-02-23 20:13:44,118 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 [2022-02-23 20:13:44,118 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:44,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 481 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-02-23 20:13:44,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-02-23 20:13:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-02-23 20:13:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5406824146981628) internal successors, (587), 381 states have internal predecessors, (587), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 591 transitions. [2022-02-23 20:13:44,123 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 591 transitions. Word has length 124 [2022-02-23 20:13:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:44,123 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 591 transitions. [2022-02-23 20:13:44,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 591 transitions. [2022-02-23 20:13:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-23 20:13:44,124 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:44,124 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] [2022-02-23 20:13:44,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-23 20:13:44,124 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:44,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-02-23 20:13:44,125 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:44,125 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825539514] [2022-02-23 20:13:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:44,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:44,226 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-23 20:13:44,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:44,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825539514] [2022-02-23 20:13:44,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825539514] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:44,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:44,227 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:44,227 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830702051] [2022-02-23 20:13:44,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:44,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:44,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:44,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:44,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:44,228 INFO L87 Difference]: Start difference. First operand 386 states and 591 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:45,676 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 [] [2022-02-23 20:13:47,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:47,942 INFO L93 Difference]: Finished difference Result 473 states and 719 transitions. [2022-02-23 20:13:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:47,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-23 20:13:47,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:47,943 INFO L225 Difference]: With dead ends: 473 [2022-02-23 20:13:47,943 INFO L226 Difference]: Without dead ends: 473 [2022-02-23 20:13:47,944 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 [2022-02-23 20:13:47,944 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:47,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 513 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-23 20:13:47,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-23 20:13:47,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 429. [2022-02-23 20:13:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 424 states have (on average 1.5400943396226414) internal successors, (653), 424 states have internal predecessors, (653), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 657 transitions. [2022-02-23 20:13:47,949 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 657 transitions. Word has length 131 [2022-02-23 20:13:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:47,949 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 657 transitions. [2022-02-23 20:13:47,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 657 transitions. [2022-02-23 20:13:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-23 20:13:47,950 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:47,950 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] [2022-02-23 20:13:47,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-23 20:13:47,950 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:47,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:47,951 INFO L85 PathProgramCache]: Analyzing trace with hash 346753369, now seen corresponding path program 1 times [2022-02-23 20:13:47,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:47,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696420451] [2022-02-23 20:13:47,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:47,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:48,037 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-23 20:13:48,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:48,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696420451] [2022-02-23 20:13:48,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696420451] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:48,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:48,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:48,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551688780] [2022-02-23 20:13:48,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:48,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:48,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:48,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:48,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:48,038 INFO L87 Difference]: Start difference. First operand 429 states and 657 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:50,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:51,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:51,435 INFO L93 Difference]: Finished difference Result 475 states and 722 transitions. [2022-02-23 20:13:51,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:51,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 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 131 [2022-02-23 20:13:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:51,437 INFO L225 Difference]: With dead ends: 475 [2022-02-23 20:13:51,437 INFO L226 Difference]: Without dead ends: 475 [2022-02-23 20:13:51,437 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 [2022-02-23 20:13:51,438 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 35 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:51,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 631 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-23 20:13:51,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-02-23 20:13:51,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-02-23 20:13:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 448 states have (on average 1.5357142857142858) internal successors, (688), 448 states have internal predecessors, (688), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 692 transitions. [2022-02-23 20:13:51,443 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 692 transitions. Word has length 131 [2022-02-23 20:13:51,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:51,443 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 692 transitions. [2022-02-23 20:13:51,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 692 transitions. [2022-02-23 20:13:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-23 20:13:51,444 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:51,444 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] [2022-02-23 20:13:51,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-23 20:13:51,445 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-02-23 20:13:51,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:51,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768339189] [2022-02-23 20:13:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:51,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:51,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:13:51,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:51,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768339189] [2022-02-23 20:13:51,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768339189] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:51,570 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:51,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:51,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564743602] [2022-02-23 20:13:51,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:51,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:51,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:51,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:51,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:51,571 INFO L87 Difference]: Start difference. First operand 453 states and 692 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:53,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:55,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:56,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:13:56,043 INFO L93 Difference]: Finished difference Result 574 states and 866 transitions. [2022-02-23 20:13:56,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:13:56,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-23 20:13:56,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:13:56,045 INFO L225 Difference]: With dead ends: 574 [2022-02-23 20:13:56,045 INFO L226 Difference]: Without dead ends: 574 [2022-02-23 20:13:56,045 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 [2022-02-23 20:13:56,046 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:13:56,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 396 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-23 20:13:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-02-23 20:13:56,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 483. [2022-02-23 20:13:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5271966527196652) internal successors, (730), 478 states have internal predecessors, (730), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 734 transitions. [2022-02-23 20:13:56,052 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 734 transitions. Word has length 144 [2022-02-23 20:13:56,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:13:56,052 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 734 transitions. [2022-02-23 20:13:56,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:13:56,052 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 734 transitions. [2022-02-23 20:13:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-23 20:13:56,053 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:13:56,053 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] [2022-02-23 20:13:56,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-23 20:13:56,053 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:13:56,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:13:56,053 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-02-23 20:13:56,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:13:56,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663515742] [2022-02-23 20:13:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:13:56,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:13:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:13:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:13:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:13:56,142 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:13:56,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663515742] [2022-02-23 20:13:56,142 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663515742] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:13:56,142 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:13:56,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:13:56,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494600668] [2022-02-23 20:13:56,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:13:56,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:13:56,143 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:13:56,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:13:56,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:13:56,143 INFO L87 Difference]: Start difference. First operand 483 states and 734 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) [2022-02-23 20:13:57,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:13:59,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:01,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:03,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:04,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:04,002 INFO L93 Difference]: Finished difference Result 525 states and 793 transitions. [2022-02-23 20:14:04,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:04,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-23 20:14:04,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:04,003 INFO L225 Difference]: With dead ends: 525 [2022-02-23 20:14:04,003 INFO L226 Difference]: Without dead ends: 525 [2022-02-23 20:14:04,004 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 [2022-02-23 20:14:04,004 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:04,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 517 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 500 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2022-02-23 20:14:04,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-02-23 20:14:04,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 483. [2022-02-23 20:14:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5251046025104602) internal successors, (729), 478 states have internal predecessors, (729), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:04,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 733 transitions. [2022-02-23 20:14:04,009 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 733 transitions. Word has length 145 [2022-02-23 20:14:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:04,009 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 733 transitions. [2022-02-23 20:14:04,009 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) [2022-02-23 20:14:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 733 transitions. [2022-02-23 20:14:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-23 20:14:04,010 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:04,010 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:04,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-23 20:14:04,011 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:04,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:04,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1698510247, now seen corresponding path program 1 times [2022-02-23 20:14:04,011 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:04,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605478806] [2022-02-23 20:14:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:04,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-23 20:14:04,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:04,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605478806] [2022-02-23 20:14:04,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605478806] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:04,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:04,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:04,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338168459] [2022-02-23 20:14:04,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:04,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:04,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:04,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:04,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:04,122 INFO L87 Difference]: Start difference. First operand 483 states and 733 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:05,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:07,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:08,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:08,062 INFO L93 Difference]: Finished difference Result 554 states and 828 transitions. [2022-02-23 20:14:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:08,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-23 20:14:08,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:08,064 INFO L225 Difference]: With dead ends: 554 [2022-02-23 20:14:08,064 INFO L226 Difference]: Without dead ends: 554 [2022-02-23 20:14:08,064 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 [2022-02-23 20:14:08,064 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:08,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-23 20:14:08,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-23 20:14:08,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-02-23 20:14:08,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.506276150627615) internal successors, (720), 478 states have internal predecessors, (720), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 724 transitions. [2022-02-23 20:14:08,069 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 724 transitions. Word has length 147 [2022-02-23 20:14:08,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:08,070 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 724 transitions. [2022-02-23 20:14:08,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 724 transitions. [2022-02-23 20:14:08,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-23 20:14:08,071 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:08,071 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, 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] [2022-02-23 20:14:08,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-23 20:14:08,071 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:08,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1339728551, now seen corresponding path program 1 times [2022-02-23 20:14:08,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:08,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627158193] [2022-02-23 20:14:08,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:08,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:08,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:14:08,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:08,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627158193] [2022-02-23 20:14:08,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627158193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:08,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:08,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:08,164 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461152889] [2022-02-23 20:14:08,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:08,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:08,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:08,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:08,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:08,165 INFO L87 Difference]: Start difference. First operand 483 states and 724 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:09,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:11,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:12,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:14,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:15,117 INFO L93 Difference]: Finished difference Result 515 states and 770 transitions. [2022-02-23 20:14:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:15,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-23 20:14:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:15,119 INFO L225 Difference]: With dead ends: 515 [2022-02-23 20:14:15,119 INFO L226 Difference]: Without dead ends: 515 [2022-02-23 20:14:15,119 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 [2022-02-23 20:14:15,119 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:15,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 531 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-02-23 20:14:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-02-23 20:14:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 483. [2022-02-23 20:14:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.50418410041841) internal successors, (719), 478 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 723 transitions. [2022-02-23 20:14:15,124 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 723 transitions. Word has length 148 [2022-02-23 20:14:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:15,125 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 723 transitions. [2022-02-23 20:14:15,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:15,125 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 723 transitions. [2022-02-23 20:14:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-23 20:14:15,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:15,126 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, 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] [2022-02-23 20:14:15,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-23 20:14:15,126 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:15,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:15,126 INFO L85 PathProgramCache]: Analyzing trace with hash -380938011, now seen corresponding path program 1 times [2022-02-23 20:14:15,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:15,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648163805] [2022-02-23 20:14:15,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:15,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-23 20:14:15,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:15,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648163805] [2022-02-23 20:14:15,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648163805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:15,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:15,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:15,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44228069] [2022-02-23 20:14:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:15,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:15,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:15,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:15,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:15,219 INFO L87 Difference]: Start difference. First operand 483 states and 723 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:16,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:18,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:19,222 INFO L93 Difference]: Finished difference Result 554 states and 820 transitions. [2022-02-23 20:14:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:19,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-02-23 20:14:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:19,223 INFO L225 Difference]: With dead ends: 554 [2022-02-23 20:14:19,223 INFO L226 Difference]: Without dead ends: 554 [2022-02-23 20:14:19,224 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 [2022-02-23 20:14:19,224 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 127 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:19,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-23 20:14:19,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-23 20:14:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-02-23 20:14:19,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4895397489539748) internal successors, (712), 478 states have internal predecessors, (712), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:19,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 716 transitions. [2022-02-23 20:14:19,246 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 716 transitions. Word has length 149 [2022-02-23 20:14:19,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:19,246 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 716 transitions. [2022-02-23 20:14:19,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 716 transitions. [2022-02-23 20:14:19,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:14:19,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:19,247 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:19,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-23 20:14:19,247 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:19,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1930272966, now seen corresponding path program 1 times [2022-02-23 20:14:19,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:19,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886715697] [2022-02-23 20:14:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:19,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:19,351 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:14:19,351 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:19,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886715697] [2022-02-23 20:14:19,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886715697] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:19,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:19,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:19,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229879193] [2022-02-23 20:14:19,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:19,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:19,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:19,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:19,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:19,352 INFO L87 Difference]: Start difference. First operand 483 states and 716 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) [2022-02-23 20:14:21,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:22,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:24,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:24,826 INFO L93 Difference]: Finished difference Result 554 states and 813 transitions. [2022-02-23 20:14:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:24,827 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 153 [2022-02-23 20:14:24,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:24,828 INFO L225 Difference]: With dead ends: 554 [2022-02-23 20:14:24,828 INFO L226 Difference]: Without dead ends: 554 [2022-02-23 20:14:24,829 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 [2022-02-23 20:14:24,829 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:24,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-23 20:14:24,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-02-23 20:14:24,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-02-23 20:14:24,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.4748953974895398) internal successors, (705), 478 states have internal predecessors, (705), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 709 transitions. [2022-02-23 20:14:24,833 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 709 transitions. Word has length 153 [2022-02-23 20:14:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:24,834 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 709 transitions. [2022-02-23 20:14:24,834 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) [2022-02-23 20:14:24,834 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 709 transitions. [2022-02-23 20:14:24,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:14:24,835 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:24,835 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:24,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-23 20:14:24,835 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:24,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:24,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1871052229, now seen corresponding path program 1 times [2022-02-23 20:14:24,835 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:24,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650205410] [2022-02-23 20:14:24,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:24,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-23 20:14:24,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:24,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650205410] [2022-02-23 20:14:24,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650205410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:24,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:24,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:24,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153767009] [2022-02-23 20:14:24,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:24,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:24,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:24,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:24,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:24,920 INFO L87 Difference]: Start difference. First operand 483 states and 709 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:26,188 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 [] [2022-02-23 20:14:28,766 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 [] [2022-02-23 20:14:29,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:29,062 INFO L93 Difference]: Finished difference Result 935 states and 1367 transitions. [2022-02-23 20:14:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:29,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 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 153 [2022-02-23 20:14:29,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:29,065 INFO L225 Difference]: With dead ends: 935 [2022-02-23 20:14:29,065 INFO L226 Difference]: Without dead ends: 935 [2022-02-23 20:14:29,065 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 [2022-02-23 20:14:29,065 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:29,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 315 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:14:29,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-02-23 20:14:29,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2022-02-23 20:14:29,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 933 states, 928 states have (on average 1.4676724137931034) internal successors, (1362), 928 states have internal predecessors, (1362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1366 transitions. [2022-02-23 20:14:29,073 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1366 transitions. Word has length 153 [2022-02-23 20:14:29,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:29,074 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 1366 transitions. [2022-02-23 20:14:29,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:29,074 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1366 transitions. [2022-02-23 20:14:29,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:14:29,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:29,075 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:29,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-23 20:14:29,076 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash -794498820, now seen corresponding path program 1 times [2022-02-23 20:14:29,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:29,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759471544] [2022-02-23 20:14:29,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:29,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-23 20:14:29,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:29,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759471544] [2022-02-23 20:14:29,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759471544] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:29,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:29,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:29,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713262234] [2022-02-23 20:14:29,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:29,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:29,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:29,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:29,163 INFO L87 Difference]: Start difference. First operand 933 states and 1366 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:32,499 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 [] [2022-02-23 20:14:32,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:32,738 INFO L93 Difference]: Finished difference Result 960 states and 1401 transitions. [2022-02-23 20:14:32,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:32,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 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 153 [2022-02-23 20:14:32,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:32,741 INFO L225 Difference]: With dead ends: 960 [2022-02-23 20:14:32,741 INFO L226 Difference]: Without dead ends: 960 [2022-02-23 20:14:32,741 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 [2022-02-23 20:14:32,741 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:32,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-23 20:14:32,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-02-23 20:14:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-02-23 20:14:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 955 states have (on average 1.46282722513089) internal successors, (1397), 955 states have internal predecessors, (1397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:32,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1401 transitions. [2022-02-23 20:14:32,750 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1401 transitions. Word has length 153 [2022-02-23 20:14:32,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:32,750 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1401 transitions. [2022-02-23 20:14:32,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1401 transitions. [2022-02-23 20:14:32,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-02-23 20:14:32,751 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:32,752 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:32,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-23 20:14:32,752 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:32,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:32,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1135732029, now seen corresponding path program 1 times [2022-02-23 20:14:32,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:32,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314318268] [2022-02-23 20:14:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-02-23 20:14:32,826 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:32,826 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314318268] [2022-02-23 20:14:32,826 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314318268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:32,826 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:32,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-23 20:14:32,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168844722] [2022-02-23 20:14:32,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:32,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-23 20:14:32,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-23 20:14:32,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-23 20:14:32,827 INFO L87 Difference]: Start difference. First operand 960 states and 1401 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:33,818 INFO L93 Difference]: Finished difference Result 962 states and 1403 transitions. [2022-02-23 20:14:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-23 20:14:33,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-02-23 20:14:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:33,821 INFO L225 Difference]: With dead ends: 962 [2022-02-23 20:14:33,821 INFO L226 Difference]: Without dead ends: 962 [2022-02-23 20:14:33,821 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 [2022-02-23 20:14:33,822 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:33,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-23 20:14:33,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-02-23 20:14:33,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-02-23 20:14:33,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4618599791013585) internal successors, (1399), 957 states have internal predecessors, (1399), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:33,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1403 transitions. [2022-02-23 20:14:33,829 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1403 transitions. Word has length 153 [2022-02-23 20:14:33,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:33,830 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1403 transitions. [2022-02-23 20:14:33,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1403 transitions. [2022-02-23 20:14:33,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-23 20:14:33,831 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:33,831 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:33,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-23 20:14:33,831 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:33,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1936906933, now seen corresponding path program 1 times [2022-02-23 20:14:33,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:33,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422565131] [2022-02-23 20:14:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:33,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-23 20:14:33,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:33,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422565131] [2022-02-23 20:14:33,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422565131] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:33,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:33,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-23 20:14:33,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003596384] [2022-02-23 20:14:33,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:33,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-23 20:14:33,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:33,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-23 20:14:33,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-23 20:14:33,928 INFO L87 Difference]: Start difference. First operand 962 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:35,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:37,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:40,001 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 [] [2022-02-23 20:14:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:41,393 INFO L93 Difference]: Finished difference Result 1493 states and 2171 transitions. [2022-02-23 20:14:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-23 20:14:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 154 [2022-02-23 20:14:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:41,397 INFO L225 Difference]: With dead ends: 1493 [2022-02-23 20:14:41,397 INFO L226 Difference]: Without dead ends: 1493 [2022-02-23 20:14:41,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-23 20:14:41,398 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 92 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:41,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 835 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 752 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-02-23 20:14:41,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-02-23 20:14:41,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1475. [2022-02-23 20:14:41,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4625850340136055) internal successors, (2150), 1470 states have internal predecessors, (2150), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:41,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2154 transitions. [2022-02-23 20:14:41,411 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2154 transitions. Word has length 154 [2022-02-23 20:14:41,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:41,411 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2154 transitions. [2022-02-23 20:14:41,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2154 transitions. [2022-02-23 20:14:41,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-23 20:14:41,413 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:41,413 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:41,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-23 20:14:41,413 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:41,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:41,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1933578057, now seen corresponding path program 1 times [2022-02-23 20:14:41,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:41,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007072737] [2022-02-23 20:14:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:41,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:14:41,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:41,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007072737] [2022-02-23 20:14:41,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007072737] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:41,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:41,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:41,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562451884] [2022-02-23 20:14:41,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:41,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:41,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:41,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:41,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:41,509 INFO L87 Difference]: Start difference. First operand 1475 states and 2154 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:44,580 INFO L93 Difference]: Finished difference Result 1604 states and 2310 transitions. [2022-02-23 20:14:44,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:44,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-23 20:14:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:44,584 INFO L225 Difference]: With dead ends: 1604 [2022-02-23 20:14:44,584 INFO L226 Difference]: Without dead ends: 1604 [2022-02-23 20:14:44,584 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 [2022-02-23 20:14:44,584 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:44,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 406 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-23 20:14:44,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-02-23 20:14:44,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1475. [2022-02-23 20:14:44,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1470 states have (on average 1.4469387755102041) internal successors, (2127), 1470 states have internal predecessors, (2127), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2131 transitions. [2022-02-23 20:14:44,597 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2131 transitions. Word has length 155 [2022-02-23 20:14:44,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:44,597 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2131 transitions. [2022-02-23 20:14:44,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2131 transitions. [2022-02-23 20:14:44,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-02-23 20:14:44,599 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:44,599 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:44,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-23 20:14:44,599 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:44,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-02-23 20:14:44,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:44,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926136306] [2022-02-23 20:14:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:14:44,693 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:44,693 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926136306] [2022-02-23 20:14:44,693 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926136306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:44,693 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:44,693 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:44,693 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415113453] [2022-02-23 20:14:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:44,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:44,694 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:44,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:44,694 INFO L87 Difference]: Start difference. First operand 1475 states and 2131 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) [2022-02-23 20:14:45,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:47,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:48,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:49,958 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 [] [2022-02-23 20:14:50,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:50,357 INFO L93 Difference]: Finished difference Result 1855 states and 2660 transitions. [2022-02-23 20:14:50,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:50,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-02-23 20:14:50,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:50,362 INFO L225 Difference]: With dead ends: 1855 [2022-02-23 20:14:50,362 INFO L226 Difference]: Without dead ends: 1855 [2022-02-23 20:14:50,362 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 [2022-02-23 20:14:50,362 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:50,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 406 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-02-23 20:14:50,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-02-23 20:14:50,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1615. [2022-02-23 20:14:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1610 states have (on average 1.4409937888198758) internal successors, (2320), 1610 states have internal predecessors, (2320), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:50,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2324 transitions. [2022-02-23 20:14:50,376 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2324 transitions. Word has length 156 [2022-02-23 20:14:50,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:50,376 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2324 transitions. [2022-02-23 20:14:50,376 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) [2022-02-23 20:14:50,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2324 transitions. [2022-02-23 20:14:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-23 20:14:50,378 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:50,378 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:14:50,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-23 20:14:50,378 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:50,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:50,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-02-23 20:14:50,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:50,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944430406] [2022-02-23 20:14:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:50,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:50,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:50,470 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-23 20:14:50,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:50,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944430406] [2022-02-23 20:14:50,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944430406] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:50,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:50,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:50,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108993027] [2022-02-23 20:14:50,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:50,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:50,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:50,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:50,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:50,471 INFO L87 Difference]: Start difference. First operand 1615 states and 2324 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) [2022-02-23 20:14:51,652 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 [] [2022-02-23 20:14:53,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:56,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:14:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:14:56,909 INFO L93 Difference]: Finished difference Result 1744 states and 2488 transitions. [2022-02-23 20:14:56,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:14:56,909 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 157 [2022-02-23 20:14:56,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:14:56,913 INFO L225 Difference]: With dead ends: 1744 [2022-02-23 20:14:56,913 INFO L226 Difference]: Without dead ends: 1744 [2022-02-23 20:14:56,913 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 [2022-02-23 20:14:56,914 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 118 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-23 20:14:56,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-02-23 20:14:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-02-23 20:14:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1613. [2022-02-23 20:14:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1608 states have (on average 1.4322139303482586) internal successors, (2303), 1608 states have internal predecessors, (2303), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2307 transitions. [2022-02-23 20:14:56,927 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2307 transitions. Word has length 157 [2022-02-23 20:14:56,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:14:56,927 INFO L470 AbstractCegarLoop]: Abstraction has 1613 states and 2307 transitions. [2022-02-23 20:14:56,927 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) [2022-02-23 20:14:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2307 transitions. [2022-02-23 20:14:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-02-23 20:14:56,929 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:14:56,929 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, 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] [2022-02-23 20:14:56,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-23 20:14:56,929 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:14:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:14:56,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1924593925, now seen corresponding path program 1 times [2022-02-23 20:14:56,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:14:56,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869677646] [2022-02-23 20:14:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:14:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:14:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:57,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:14:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:14:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:14:57,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:14:57,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869677646] [2022-02-23 20:14:57,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869677646] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:14:57,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:14:57,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:14:57,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463201297] [2022-02-23 20:14:57,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:14:57,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:14:57,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:14:57,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:14:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:14:57,043 INFO L87 Difference]: Start difference. First operand 1613 states and 2307 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:14:58,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:00,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:02,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:04,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:05,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:05,024 INFO L93 Difference]: Finished difference Result 1987 states and 2809 transitions. [2022-02-23 20:15:05,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:05,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 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 160 [2022-02-23 20:15:05,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:05,029 INFO L225 Difference]: With dead ends: 1987 [2022-02-23 20:15:05,030 INFO L226 Difference]: Without dead ends: 1987 [2022-02-23 20:15:05,030 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 [2022-02-23 20:15:05,030 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 127 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:05,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 512 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2022-02-23 20:15:05,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-02-23 20:15:05,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1717. [2022-02-23 20:15:05,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4158878504672898) internal successors, (2424), 1712 states have internal predecessors, (2424), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2428 transitions. [2022-02-23 20:15:05,045 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2428 transitions. Word has length 160 [2022-02-23 20:15:05,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:05,045 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2428 transitions. [2022-02-23 20:15:05,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2428 transitions. [2022-02-23 20:15:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-02-23 20:15:05,047 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:05,047 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, 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] [2022-02-23 20:15:05,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-23 20:15:05,047 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:05,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:05,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1323780289, now seen corresponding path program 1 times [2022-02-23 20:15:05,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:05,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252041357] [2022-02-23 20:15:05,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:05,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:05,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:15:05,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:05,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252041357] [2022-02-23 20:15:05,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252041357] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:05,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:05,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:05,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131520298] [2022-02-23 20:15:05,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:05,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:05,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:05,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:05,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:05,151 INFO L87 Difference]: Start difference. First operand 1717 states and 2428 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:06,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:08,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:10,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:11,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:11,826 INFO L93 Difference]: Finished difference Result 1846 states and 2580 transitions. [2022-02-23 20:15:11,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:11,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 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 161 [2022-02-23 20:15:11,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:11,831 INFO L225 Difference]: With dead ends: 1846 [2022-02-23 20:15:11,831 INFO L226 Difference]: Without dead ends: 1846 [2022-02-23 20:15:11,831 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 [2022-02-23 20:15:11,831 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 126 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:11,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-02-23 20:15:11,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-02-23 20:15:11,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1717. [2022-02-23 20:15:11,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.4001168224299065) internal successors, (2397), 1712 states have internal predecessors, (2397), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2401 transitions. [2022-02-23 20:15:11,846 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2401 transitions. Word has length 161 [2022-02-23 20:15:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:11,846 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2401 transitions. [2022-02-23 20:15:11,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:11,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2401 transitions. [2022-02-23 20:15:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-02-23 20:15:11,848 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:11,848 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:11,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-23 20:15:11,848 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:11,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1048598705, now seen corresponding path program 1 times [2022-02-23 20:15:11,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:11,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095590492] [2022-02-23 20:15:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:11,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:11,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:11,988 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:15:11,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:11,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095590492] [2022-02-23 20:15:11,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095590492] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:11,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:11,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:11,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9092927] [2022-02-23 20:15:11,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:11,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:11,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:11,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:11,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:11,991 INFO L87 Difference]: Start difference. First operand 1717 states and 2401 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:13,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:15,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:16,142 INFO L93 Difference]: Finished difference Result 1762 states and 2456 transitions. [2022-02-23 20:15:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:16,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 164 [2022-02-23 20:15:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:16,145 INFO L225 Difference]: With dead ends: 1762 [2022-02-23 20:15:16,145 INFO L226 Difference]: Without dead ends: 1762 [2022-02-23 20:15:16,145 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 [2022-02-23 20:15:16,148 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 37 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:16,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 563 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-23 20:15:16,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-02-23 20:15:16,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1717. [2022-02-23 20:15:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1712 states have (on average 1.3983644859813085) internal successors, (2394), 1712 states have internal predecessors, (2394), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2398 transitions. [2022-02-23 20:15:16,163 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2398 transitions. Word has length 164 [2022-02-23 20:15:16,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:16,163 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2398 transitions. [2022-02-23 20:15:16,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:16,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2398 transitions. [2022-02-23 20:15:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-23 20:15:16,165 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:16,165 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:16,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-23 20:15:16,165 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:16,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:16,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1501818664, now seen corresponding path program 1 times [2022-02-23 20:15:16,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:16,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827271044] [2022-02-23 20:15:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-23 20:15:16,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:16,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827271044] [2022-02-23 20:15:16,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827271044] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:16,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:16,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:16,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229525443] [2022-02-23 20:15:16,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:16,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:16,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:16,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:16,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:16,253 INFO L87 Difference]: Start difference. First operand 1717 states and 2398 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:17,683 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:19,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:20,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:20,025 INFO L93 Difference]: Finished difference Result 1744 states and 2428 transitions. [2022-02-23 20:15:20,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:20,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 165 [2022-02-23 20:15:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:20,028 INFO L225 Difference]: With dead ends: 1744 [2022-02-23 20:15:20,028 INFO L226 Difference]: Without dead ends: 1744 [2022-02-23 20:15:20,028 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 [2022-02-23 20:15:20,028 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 28 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:20,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 563 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-23 20:15:20,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-02-23 20:15:20,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1706. [2022-02-23 20:15:20,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3991769547325104) internal successors, (2380), 1701 states have internal predecessors, (2380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2384 transitions. [2022-02-23 20:15:20,042 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2384 transitions. Word has length 165 [2022-02-23 20:15:20,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:20,042 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2384 transitions. [2022-02-23 20:15:20,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:20,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2384 transitions. [2022-02-23 20:15:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-23 20:15:20,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:20,044 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, 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, 1, 1] [2022-02-23 20:15:20,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-23 20:15:20,044 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1494416010, now seen corresponding path program 1 times [2022-02-23 20:15:20,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:20,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513306907] [2022-02-23 20:15:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-02-23 20:15:20,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:20,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513306907] [2022-02-23 20:15:20,156 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513306907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:20,156 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:20,156 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-23 20:15:20,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615870696] [2022-02-23 20:15:20,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:20,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-23 20:15:20,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:20,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-23 20:15:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-23 20:15:20,157 INFO L87 Difference]: Start difference. First operand 1706 states and 2384 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) [2022-02-23 20:15:21,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:22,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:24,966 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 [] [2022-02-23 20:15:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:25,309 INFO L93 Difference]: Finished difference Result 1740 states and 2422 transitions. [2022-02-23 20:15:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-23 20:15:25,309 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 167 [2022-02-23 20:15:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:25,311 INFO L225 Difference]: With dead ends: 1740 [2022-02-23 20:15:25,311 INFO L226 Difference]: Without dead ends: 1740 [2022-02-23 20:15:25,312 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 [2022-02-23 20:15:25,312 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 22 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:25,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 600 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-23 20:15:25,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-02-23 20:15:25,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1706. [2022-02-23 20:15:25,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3968253968253967) internal successors, (2376), 1701 states have internal predecessors, (2376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2380 transitions. [2022-02-23 20:15:25,327 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2380 transitions. Word has length 167 [2022-02-23 20:15:25,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:25,328 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2380 transitions. [2022-02-23 20:15:25,328 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) [2022-02-23 20:15:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2380 transitions. [2022-02-23 20:15:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-23 20:15:25,330 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:25,330 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:25,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-23 20:15:25,330 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:25,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:25,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-02-23 20:15:25,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:25,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387378884] [2022-02-23 20:15:25,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:25,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:25,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-02-23 20:15:25,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:25,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387378884] [2022-02-23 20:15:25,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387378884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-23 20:15:25,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-23 20:15:25,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-23 20:15:25,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125384145] [2022-02-23 20:15:25,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-23 20:15:25,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-23 20:15:25,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-23 20:15:25,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-23 20:15:25,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-23 20:15:25,674 INFO L87 Difference]: Start difference. First operand 1706 states and 2380 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:27,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:30,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:32,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-23 20:15:32,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-23 20:15:32,815 INFO L93 Difference]: Finished difference Result 1714 states and 2390 transitions. [2022-02-23 20:15:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-23 20:15:32,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-23 20:15:32,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-23 20:15:32,822 INFO L225 Difference]: With dead ends: 1714 [2022-02-23 20:15:32,822 INFO L226 Difference]: Without dead ends: 1706 [2022-02-23 20:15:32,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-23 20:15:32,822 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-23 20:15:32,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 892 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-02-23 20:15:32,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-02-23 20:15:32,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2022-02-23 20:15:32,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1701 states have (on average 1.3962375073486184) internal successors, (2375), 1701 states have internal predecessors, (2375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:32,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2379 transitions. [2022-02-23 20:15:32,836 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2379 transitions. Word has length 174 [2022-02-23 20:15:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-23 20:15:32,837 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2379 transitions. [2022-02-23 20:15:32,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-23 20:15:32,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2379 transitions. [2022-02-23 20:15:32,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-23 20:15:32,838 INFO L506 BasicCegarLoop]: Found error trace [2022-02-23 20:15:32,838 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-23 20:15:32,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-23 20:15:32,839 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-23 20:15:32,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-23 20:15:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-02-23 20:15:32,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-23 20:15:32,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308377096] [2022-02-23 20:15:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:32,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-23 20:15:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-23 20:15:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-23 20:15:33,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-23 20:15:33,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308377096] [2022-02-23 20:15:33,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308377096] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-23 20:15:33,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824706391] [2022-02-23 20:15:33,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-23 20:15:33,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-23 20:15:33,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-23 20:15:33,640 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) [2022-02-23 20:15:33,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-23 20:15:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-23 20:15:34,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 217 conjunts are in the unsatisfiable core [2022-02-23 20:15:34,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-23 20:15:34,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-02-23 20:15:34,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-23 20:15:34,988 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662