/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-d966a43 [2022-01-31 16:34:36,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 16:34:36,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 16:34:36,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 16:34:36,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 16:34:36,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 16:34:36,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 16:34:36,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 16:34:36,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 16:34:36,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 16:34:36,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 16:34:36,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 16:34:36,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 16:34:36,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 16:34:36,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 16:34:36,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 16:34:36,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 16:34:36,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 16:34:36,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 16:34:36,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 16:34:36,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 16:34:36,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 16:34:36,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 16:34:36,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 16:34:36,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 16:34:36,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 16:34:36,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 16:34:36,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 16:34:36,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 16:34:36,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 16:34:36,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 16:34:36,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 16:34:36,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 16:34:36,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 16:34:36,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 16:34:36,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 16:34:36,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 16:34:36,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 16:34:36,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 16:34:36,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 16:34:36,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 16:34:36,699 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-01-31 16:34:36,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 16:34:36,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 16:34:36,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 16:34:36,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 16:34:36,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 16:34:36,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 16:34:36,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 16:34:36,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 16:34:36,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 16:34:36,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 16:34:36,719 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 16:34:36,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 16:34:36,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:34:36,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 16:34:36,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-31 16:34:36,720 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-31 16:34:36,720 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 16:34:36,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 16:34:36,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 16:34:36,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 16:34:36,967 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 16:34:36,968 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 16:34:36,969 INFO L432 ainManager$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 [2022-01-31 16:34:37,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5604d251/a21c94c9563440abbca37cee8e263632/FLAG3d975d4b6 [2022-01-31 16:34:37,591 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 16:34:37,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-2.c [2022-01-31 16:34:37,613 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5604d251/a21c94c9563440abbca37cee8e263632/FLAG3d975d4b6 [2022-01-31 16:34:38,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5604d251/a21c94c9563440abbca37cee8e263632 [2022-01-31 16:34:38,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 16:34:38,022 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-31 16:34:38,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 16:34:38,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 16:34:38,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 16:34:38,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c79df65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38, skipping insertion in model container [2022-01-31 16:34:38,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 16:34:38,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 16:34:38,467 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] [2022-01-31 16:34:38,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:34:38,502 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 16:34:38,626 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] [2022-01-31 16:34:38,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 16:34:38,649 INFO L208 MainTranslator]: Completed translation [2022-01-31 16:34:38,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38 WrapperNode [2022-01-31 16:34:38,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 16:34:38,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 16:34:38,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 16:34:38,651 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 16:34:38,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 16:34:38,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 16:34:38,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 16:34:38,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 16:34:38,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (1/1) ... [2022-01-31 16:34:38,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 16:34:38,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:34:38,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 16:34:38,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 16:34:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 16:34:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 16:34:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 16:34:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-01-31 16:34:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-01-31 16:34:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 16:34:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-01-31 16:34:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-01-31 16:34:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-01-31 16:34:38,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-01-31 16:34:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 16:34:38,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 16:34:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 16:34:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 16:34:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 16:34:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-01-31 16:34:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 16:34:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-01-31 16:34:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-01-31 16:34:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-01-31 16:34:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-01-31 16:34:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-01-31 16:34:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-01-31 16:34:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-01-31 16:34:38,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-01-31 16:34:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-31 16:34:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 16:34:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 16:34:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 16:34:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-31 16:34:38,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-01-31 16:34:38,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-01-31 16:34:38,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 16:34:39,111 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 16:34:39,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 16:34:39,864 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-31 16:34:40,403 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-01-31 16:34:40,403 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-01-31 16:34:40,415 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 16:34:40,425 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 16:34:40,425 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-31 16:34:40,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:34:40 BoogieIcfgContainer [2022-01-31 16:34:40,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 16:34:40,428 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-31 16:34:40,428 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-31 16:34:40,430 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-31 16:34:40,433 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:34:40" (1/1) ... [2022-01-31 16:34:40,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:34:40 BasicIcfg [2022-01-31 16:34:40,487 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-31 16:34:40,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 16:34:40,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 16:34:40,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 16:34:40,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:34:38" (1/4) ... [2022-01-31 16:34:40,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10032d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:34:40, skipping insertion in model container [2022-01-31 16:34:40,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:34:38" (2/4) ... [2022-01-31 16:34:40,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10032d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:34:40, skipping insertion in model container [2022-01-31 16:34:40,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:34:40" (3/4) ... [2022-01-31 16:34:40,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10032d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:34:40, skipping insertion in model container [2022-01-31 16:34:40,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 31.01 04:34:40" (4/4) ... [2022-01-31 16:34:40,495 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-2.cJordan [2022-01-31 16:34:40,501 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-01-31 16:34:40,501 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 16:34:40,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 16:34:40,563 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-31 16:34:40,564 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 16:34:40,596 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) [2022-01-31 16:34:40,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-31 16:34:40,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:40,606 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] [2022-01-31 16:34:40,606 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:40,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:40,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1842589219, now seen corresponding path program 1 times [2022-01-31 16:34:40,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:40,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881018925] [2022-01-31 16:34:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:40,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:41,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:41,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:41,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881018925] [2022-01-31 16:34:41,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881018925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:41,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:41,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:41,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623075328] [2022-01-31 16:34:41,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:41,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:41,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:41,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:41,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:41,186 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) [2022-01-31 16:34:43,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:43,714 INFO L93 Difference]: Finished difference Result 297 states and 497 transitions. [2022-01-31 16:34:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:43,721 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 [2022-01-31 16:34:43,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:43,730 INFO L225 Difference]: With dead ends: 297 [2022-01-31 16:34:43,730 INFO L226 Difference]: Without dead ends: 271 [2022-01-31 16:34:43,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:43,735 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 164 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:43,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 493 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-31 16:34:43,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-01-31 16:34:43,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 187. [2022-01-31 16:34:43,784 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) [2022-01-31 16:34:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 298 transitions. [2022-01-31 16:34:43,787 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 298 transitions. Word has length 49 [2022-01-31 16:34:43,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:43,788 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 298 transitions. [2022-01-31 16:34:43,788 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) [2022-01-31 16:34:43,789 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 298 transitions. [2022-01-31 16:34:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-31 16:34:43,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:43,791 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] [2022-01-31 16:34:43,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 16:34:43,791 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:43,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:43,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1256262427, now seen corresponding path program 1 times [2022-01-31 16:34:43,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:43,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852815968] [2022-01-31 16:34:43,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:43,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:43,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:43,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:43,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:43,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852815968] [2022-01-31 16:34:43,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852815968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:43,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:43,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:43,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317844580] [2022-01-31 16:34:43,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:43,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:43,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:43,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:43,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:43,967 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) [2022-01-31 16:34:45,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:46,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:46,740 INFO L93 Difference]: Finished difference Result 215 states and 338 transitions. [2022-01-31 16:34:46,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:46,741 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 [2022-01-31 16:34:46,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:46,742 INFO L225 Difference]: With dead ends: 215 [2022-01-31 16:34:46,742 INFO L226 Difference]: Without dead ends: 215 [2022-01-31 16:34:46,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:46,744 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 22 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:46,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 511 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-01-31 16:34:46,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-01-31 16:34:46,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-01-31 16:34:46,754 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) [2022-01-31 16:34:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 317 transitions. [2022-01-31 16:34:46,756 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 317 transitions. Word has length 50 [2022-01-31 16:34:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:46,756 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 317 transitions. [2022-01-31 16:34:46,756 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) [2022-01-31 16:34:46,757 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 317 transitions. [2022-01-31 16:34:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-31 16:34:46,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:46,759 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] [2022-01-31 16:34:46,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 16:34:46,759 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:46,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:46,760 INFO L85 PathProgramCache]: Analyzing trace with hash 821038722, now seen corresponding path program 1 times [2022-01-31 16:34:46,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:46,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303866632] [2022-01-31 16:34:46,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:46,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:46,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:46,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303866632] [2022-01-31 16:34:46,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303866632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:46,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:46,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:46,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376334722] [2022-01-31 16:34:46,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:46,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:46,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:46,897 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) [2022-01-31 16:34:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:49,729 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-01-31 16:34:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:49,730 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 [2022-01-31 16:34:49,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:49,731 INFO L225 Difference]: With dead ends: 215 [2022-01-31 16:34:49,731 INFO L226 Difference]: Without dead ends: 215 [2022-01-31 16:34:49,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:49,732 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 24 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:49,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:34:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-01-31 16:34:49,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 198. [2022-01-31 16:34:49,746 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) [2022-01-31 16:34:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 316 transitions. [2022-01-31 16:34:49,747 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 316 transitions. Word has length 63 [2022-01-31 16:34:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:49,747 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 316 transitions. [2022-01-31 16:34:49,747 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) [2022-01-31 16:34:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 316 transitions. [2022-01-31 16:34:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:34:49,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:49,750 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] [2022-01-31 16:34:49,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 16:34:49,750 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:49,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:49,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2114147329, now seen corresponding path program 1 times [2022-01-31 16:34:49,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:49,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509325537] [2022-01-31 16:34:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:49,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:49,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:49,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509325537] [2022-01-31 16:34:49,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509325537] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:49,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:49,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:49,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635538218] [2022-01-31 16:34:49,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:49,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:49,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:49,949 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) [2022-01-31 16:34:51,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:51,900 INFO L93 Difference]: Finished difference Result 214 states and 335 transitions. [2022-01-31 16:34:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:51,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 16:34:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:51,903 INFO L225 Difference]: With dead ends: 214 [2022-01-31 16:34:51,903 INFO L226 Difference]: Without dead ends: 214 [2022-01-31 16:34:51,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:51,904 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 28 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:51,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 515 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-01-31 16:34:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-31 16:34:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 198. [2022-01-31 16:34:51,919 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) [2022-01-31 16:34:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 315 transitions. [2022-01-31 16:34:51,920 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 315 transitions. Word has length 64 [2022-01-31 16:34:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:51,921 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 315 transitions. [2022-01-31 16:34:51,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 315 transitions. [2022-01-31 16:34:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:34:51,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:51,923 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] [2022-01-31 16:34:51,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-31 16:34:51,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash 826373151, now seen corresponding path program 1 times [2022-01-31 16:34:51,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:51,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132999651] [2022-01-31 16:34:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:51,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:52,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:52,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:52,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132999651] [2022-01-31 16:34:52,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132999651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:52,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:52,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:52,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099527076] [2022-01-31 16:34:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:52,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:52,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:52,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:52,107 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) [2022-01-31 16:34:54,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:56,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:34:57,331 INFO L93 Difference]: Finished difference Result 321 states and 506 transitions. [2022-01-31 16:34:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:34:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 16:34:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:34:57,333 INFO L225 Difference]: With dead ends: 321 [2022-01-31 16:34:57,333 INFO L226 Difference]: Without dead ends: 321 [2022-01-31 16:34:57,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:34:57,334 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 159 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:34:57,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:34:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-01-31 16:34:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 210. [2022-01-31 16:34:57,346 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) [2022-01-31 16:34:57,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 331 transitions. [2022-01-31 16:34:57,347 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 331 transitions. Word has length 64 [2022-01-31 16:34:57,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:34:57,347 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 331 transitions. [2022-01-31 16:34:57,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:34:57,348 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 331 transitions. [2022-01-31 16:34:57,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:34:57,349 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:34:57,349 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] [2022-01-31 16:34:57,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-31 16:34:57,349 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:34:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:34:57,350 INFO L85 PathProgramCache]: Analyzing trace with hash -230789025, now seen corresponding path program 1 times [2022-01-31 16:34:57,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:34:57,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611185159] [2022-01-31 16:34:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:34:57,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:34:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:57,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:34:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:34:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:34:57,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:34:57,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611185159] [2022-01-31 16:34:57,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611185159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:34:57,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:34:57,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:34:57,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586644414] [2022-01-31 16:34:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:34:57,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:34:57,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:34:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:34:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:34:57,505 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) [2022-01-31 16:34:58,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:34:59,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:01,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:01,637 INFO L93 Difference]: Finished difference Result 321 states and 503 transitions. [2022-01-31 16:35:01,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:01,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 16:35:01,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:01,639 INFO L225 Difference]: With dead ends: 321 [2022-01-31 16:35:01,639 INFO L226 Difference]: Without dead ends: 321 [2022-01-31 16:35:01,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:01,640 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 153 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:01,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 374 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:35:01,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-01-31 16:35:01,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 215. [2022-01-31 16:35:01,647 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) [2022-01-31 16:35:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 338 transitions. [2022-01-31 16:35:01,648 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 338 transitions. Word has length 64 [2022-01-31 16:35:01,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:01,648 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 338 transitions. [2022-01-31 16:35:01,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:01,648 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 338 transitions. [2022-01-31 16:35:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-31 16:35:01,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:01,650 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] [2022-01-31 16:35:01,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-31 16:35:01,650 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:01,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:01,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1540051073, now seen corresponding path program 1 times [2022-01-31 16:35:01,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:01,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007706226] [2022-01-31 16:35:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:01,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:01,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:01,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:01,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007706226] [2022-01-31 16:35:01,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007706226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:01,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:01,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:01,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626931425] [2022-01-31 16:35:01,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:01,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:01,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:01,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:01,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:01,804 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) [2022-01-31 16:35:03,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:05,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:07,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:08,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:08,439 INFO L93 Difference]: Finished difference Result 320 states and 499 transitions. [2022-01-31 16:35:08,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:08,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-01-31 16:35:08,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:08,442 INFO L225 Difference]: With dead ends: 320 [2022-01-31 16:35:08,442 INFO L226 Difference]: Without dead ends: 320 [2022-01-31 16:35:08,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:08,443 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 151 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:08,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 484 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-01-31 16:35:08,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-01-31 16:35:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-01-31 16:35:08,448 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) [2022-01-31 16:35:08,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 337 transitions. [2022-01-31 16:35:08,449 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 337 transitions. Word has length 64 [2022-01-31 16:35:08,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:08,450 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 337 transitions. [2022-01-31 16:35:08,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 337 transitions. [2022-01-31 16:35:08,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-31 16:35:08,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:08,451 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] [2022-01-31 16:35:08,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-31 16:35:08,453 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:08,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:08,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1577451682, now seen corresponding path program 1 times [2022-01-31 16:35:08,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:08,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505381100] [2022-01-31 16:35:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:08,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:08,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:08,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505381100] [2022-01-31 16:35:08,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505381100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:08,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:08,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:08,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123745846] [2022-01-31 16:35:08,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:08,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:08,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:08,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:08,582 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) [2022-01-31 16:35:09,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:12,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:12,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:12,802 INFO L93 Difference]: Finished difference Result 320 states and 496 transitions. [2022-01-31 16:35:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:12,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-01-31 16:35:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:12,804 INFO L225 Difference]: With dead ends: 320 [2022-01-31 16:35:12,804 INFO L226 Difference]: Without dead ends: 320 [2022-01-31 16:35:12,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:12,805 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:12,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:35:12,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-01-31 16:35:12,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-01-31 16:35:12,811 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) [2022-01-31 16:35:12,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 334 transitions. [2022-01-31 16:35:12,812 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 334 transitions. Word has length 65 [2022-01-31 16:35:12,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:12,812 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 334 transitions. [2022-01-31 16:35:12,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:12,812 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 334 transitions. [2022-01-31 16:35:12,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-31 16:35:12,813 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:12,813 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] [2022-01-31 16:35:12,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-31 16:35:12,813 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:12,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1615094397, now seen corresponding path program 1 times [2022-01-31 16:35:12,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:12,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734624018] [2022-01-31 16:35:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:12,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:12,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:12,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:12,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734624018] [2022-01-31 16:35:12,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734624018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:12,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:12,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:12,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561517254] [2022-01-31 16:35:12,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:12,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:12,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:12,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:12,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:12,921 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) [2022-01-31 16:35:14,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:16,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:18,718 INFO L93 Difference]: Finished difference Result 229 states and 350 transitions. [2022-01-31 16:35:18,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:18,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-01-31 16:35:18,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:18,720 INFO L225 Difference]: With dead ends: 229 [2022-01-31 16:35:18,720 INFO L226 Difference]: Without dead ends: 229 [2022-01-31 16:35:18,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:18,721 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 20 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:18,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 521 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:35:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-01-31 16:35:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 216. [2022-01-31 16:35:18,725 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) [2022-01-31 16:35:18,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 333 transitions. [2022-01-31 16:35:18,726 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 333 transitions. Word has length 66 [2022-01-31 16:35:18,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:18,727 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 333 transitions. [2022-01-31 16:35:18,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 333 transitions. [2022-01-31 16:35:18,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:35:18,744 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:18,744 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] [2022-01-31 16:35:18,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-31 16:35:18,744 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:18,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:18,745 INFO L85 PathProgramCache]: Analyzing trace with hash -181923963, now seen corresponding path program 1 times [2022-01-31 16:35:18,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:18,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919330113] [2022-01-31 16:35:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:18,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:18,883 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:18,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:18,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919330113] [2022-01-31 16:35:18,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919330113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:18,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:18,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:18,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450400643] [2022-01-31 16:35:18,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:18,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:18,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:18,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:18,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:18,888 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) [2022-01-31 16:35:21,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:23,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:25,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:25,054 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2022-01-31 16:35:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:25,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-01-31 16:35:25,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:25,056 INFO L225 Difference]: With dead ends: 219 [2022-01-31 16:35:25,056 INFO L226 Difference]: Without dead ends: 219 [2022-01-31 16:35:25,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:25,057 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 11 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 6.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:25,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 535 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 350 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-01-31 16:35:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-01-31 16:35:25,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2022-01-31 16:35:25,061 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) [2022-01-31 16:35:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 332 transitions. [2022-01-31 16:35:25,062 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 332 transitions. Word has length 67 [2022-01-31 16:35:25,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:25,063 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 332 transitions. [2022-01-31 16:35:25,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 332 transitions. [2022-01-31 16:35:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-31 16:35:25,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:25,064 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] [2022-01-31 16:35:25,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-31 16:35:25,064 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:25,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:25,064 INFO L85 PathProgramCache]: Analyzing trace with hash -524374476, now seen corresponding path program 1 times [2022-01-31 16:35:25,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:25,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703034304] [2022-01-31 16:35:25,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:25,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 16:35:25,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:25,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703034304] [2022-01-31 16:35:25,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703034304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:25,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:25,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:25,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191167265] [2022-01-31 16:35:25,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:25,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:25,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:25,197 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) [2022-01-31 16:35:26,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:27,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:28,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:29,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:30,413 INFO L93 Difference]: Finished difference Result 320 states and 493 transitions. [2022-01-31 16:35:30,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:30,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-01-31 16:35:30,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:30,416 INFO L225 Difference]: With dead ends: 320 [2022-01-31 16:35:30,416 INFO L226 Difference]: Without dead ends: 320 [2022-01-31 16:35:30,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:30,418 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 128 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:30,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:35:30,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-01-31 16:35:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 238. [2022-01-31 16:35:30,422 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) [2022-01-31 16:35:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 375 transitions. [2022-01-31 16:35:30,424 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 375 transitions. Word has length 67 [2022-01-31 16:35:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:30,424 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 375 transitions. [2022-01-31 16:35:30,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 375 transitions. [2022-01-31 16:35:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-31 16:35:30,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:30,429 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] [2022-01-31 16:35:30,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-31 16:35:30,430 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:30,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash -268597879, now seen corresponding path program 1 times [2022-01-31 16:35:30,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:30,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705298099] [2022-01-31 16:35:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:30,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:30,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-31 16:35:30,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:30,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705298099] [2022-01-31 16:35:30,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705298099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:30,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:30,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:30,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492227989] [2022-01-31 16:35:30,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:30,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:30,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:30,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:30,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:30,557 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) [2022-01-31 16:35:32,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:34,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:36,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:37,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:37,266 INFO L93 Difference]: Finished difference Result 280 states and 435 transitions. [2022-01-31 16:35:37,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:37,266 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 [2022-01-31 16:35:37,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:37,268 INFO L225 Difference]: With dead ends: 280 [2022-01-31 16:35:37,268 INFO L226 Difference]: Without dead ends: 280 [2022-01-31 16:35:37,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:37,269 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 30 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:37,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 404 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-01-31 16:35:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-01-31 16:35:37,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 260. [2022-01-31 16:35:37,274 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) [2022-01-31 16:35:37,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 409 transitions. [2022-01-31 16:35:37,275 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 409 transitions. Word has length 95 [2022-01-31 16:35:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:37,276 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 409 transitions. [2022-01-31 16:35:37,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 409 transitions. [2022-01-31 16:35:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-31 16:35:37,278 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:37,278 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] [2022-01-31 16:35:37,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-31 16:35:37,278 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:37,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:37,279 INFO L85 PathProgramCache]: Analyzing trace with hash 664162408, now seen corresponding path program 1 times [2022-01-31 16:35:37,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:37,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115043626] [2022-01-31 16:35:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:37,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:37,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:37,411 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:37,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:37,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115043626] [2022-01-31 16:35:37,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115043626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:37,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:37,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:37,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060999430] [2022-01-31 16:35:37,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:37,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:37,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:37,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:37,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:37,413 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) [2022-01-31 16:35:39,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:40,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:42,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:43,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:43,556 INFO L93 Difference]: Finished difference Result 380 states and 591 transitions. [2022-01-31 16:35:43,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:43,556 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 [2022-01-31 16:35:43,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:43,558 INFO L225 Difference]: With dead ends: 380 [2022-01-31 16:35:43,558 INFO L226 Difference]: Without dead ends: 380 [2022-01-31 16:35:43,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:43,559 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 151 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s 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, 6.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:43,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 634 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 611 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-01-31 16:35:43,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-01-31 16:35:43,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2022-01-31 16:35:43,564 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) [2022-01-31 16:35:43,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 431 transitions. [2022-01-31 16:35:43,565 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 431 transitions. Word has length 108 [2022-01-31 16:35:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:43,565 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 431 transitions. [2022-01-31 16:35:43,566 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) [2022-01-31 16:35:43,566 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 431 transitions. [2022-01-31 16:35:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-31 16:35:43,567 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:43,567 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] [2022-01-31 16:35:43,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-31 16:35:43,567 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:43,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:43,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2013387619, now seen corresponding path program 1 times [2022-01-31 16:35:43,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:43,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135419067] [2022-01-31 16:35:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:43,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:43,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-01-31 16:35:43,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:43,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135419067] [2022-01-31 16:35:43,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135419067] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:43,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:43,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:43,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890635075] [2022-01-31 16:35:43,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:43,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:43,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:43,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:43,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:43,686 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) [2022-01-31 16:35:45,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:47,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:49,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:49,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:49,483 INFO L93 Difference]: Finished difference Result 289 states and 446 transitions. [2022-01-31 16:35:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:49,484 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 [2022-01-31 16:35:49,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:49,485 INFO L225 Difference]: With dead ends: 289 [2022-01-31 16:35:49,485 INFO L226 Difference]: Without dead ends: 289 [2022-01-31 16:35:49,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:49,486 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 20 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 5.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:49,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 600 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-01-31 16:35:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-01-31 16:35:49,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 276. [2022-01-31 16:35:49,490 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) [2022-01-31 16:35:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 430 transitions. [2022-01-31 16:35:49,492 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 430 transitions. Word has length 109 [2022-01-31 16:35:49,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:49,492 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 430 transitions. [2022-01-31 16:35:49,493 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) [2022-01-31 16:35:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 430 transitions. [2022-01-31 16:35:49,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-31 16:35:49,494 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:49,494 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] [2022-01-31 16:35:49,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-31 16:35:49,494 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:49,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:49,494 INFO L85 PathProgramCache]: Analyzing trace with hash 621269315, now seen corresponding path program 1 times [2022-01-31 16:35:49,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:49,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72539252] [2022-01-31 16:35:49,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:49,495 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-01-31 16:35:49,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:49,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72539252] [2022-01-31 16:35:49,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72539252] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:49,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:49,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:35:49,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591758087] [2022-01-31 16:35:49,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:49,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:35:49,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:35:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:49,624 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) [2022-01-31 16:35:53,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:54,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:54,216 INFO L93 Difference]: Finished difference Result 285 states and 441 transitions. [2022-01-31 16:35:54,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 16:35:54,217 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 [2022-01-31 16:35:54,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:54,218 INFO L225 Difference]: With dead ends: 285 [2022-01-31 16:35:54,218 INFO L226 Difference]: Without dead ends: 285 [2022-01-31 16:35:54,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:35:54,221 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 3 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:54,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 673 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-01-31 16:35:54,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-01-31 16:35:54,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-01-31 16:35:54,226 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) [2022-01-31 16:35:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 441 transitions. [2022-01-31 16:35:54,227 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 441 transitions. Word has length 110 [2022-01-31 16:35:54,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:54,239 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 441 transitions. [2022-01-31 16:35:54,239 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) [2022-01-31 16:35:54,240 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 441 transitions. [2022-01-31 16:35:54,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-31 16:35:54,241 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:54,241 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] [2022-01-31 16:35:54,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-31 16:35:54,241 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:54,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1418030591, now seen corresponding path program 1 times [2022-01-31 16:35:54,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:54,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860142809] [2022-01-31 16:35:54,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:54,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:54,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:54,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860142809] [2022-01-31 16:35:54,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860142809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:54,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:54,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:54,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947119813] [2022-01-31 16:35:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:54,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:54,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:54,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:54,429 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) [2022-01-31 16:35:57,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:59,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:35:59,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:35:59,650 INFO L93 Difference]: Finished difference Result 376 states and 566 transitions. [2022-01-31 16:35:59,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:35:59,650 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 [2022-01-31 16:35:59,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:35:59,652 INFO L225 Difference]: With dead ends: 376 [2022-01-31 16:35:59,652 INFO L226 Difference]: Without dead ends: 376 [2022-01-31 16:35:59,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:35:59,653 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 153 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s 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, 5.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:35:59,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 394 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-01-31 16:35:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2022-01-31 16:35:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 285. [2022-01-31 16:35:59,658 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) [2022-01-31 16:35:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 437 transitions. [2022-01-31 16:35:59,659 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 437 transitions. Word has length 112 [2022-01-31 16:35:59,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:35:59,659 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 437 transitions. [2022-01-31 16:35:59,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:35:59,659 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 437 transitions. [2022-01-31 16:35:59,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-31 16:35:59,660 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:35:59,660 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] [2022-01-31 16:35:59,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-31 16:35:59,661 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:35:59,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:35:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1410842427, now seen corresponding path program 1 times [2022-01-31 16:35:59,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:35:59,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155233053] [2022-01-31 16:35:59,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:35:59,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:35:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:59,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:35:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:35:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-01-31 16:35:59,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:35:59,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155233053] [2022-01-31 16:35:59,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155233053] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:35:59,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:35:59,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:35:59,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225357142] [2022-01-31 16:35:59,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:35:59,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:35:59,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:35:59,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:35:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:35:59,776 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) [2022-01-31 16:36:03,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:04,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:04,167 INFO L93 Difference]: Finished difference Result 302 states and 458 transitions. [2022-01-31 16:36:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:04,167 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 [2022-01-31 16:36:04,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:04,171 INFO L225 Difference]: With dead ends: 302 [2022-01-31 16:36:04,171 INFO L226 Difference]: Without dead ends: 302 [2022-01-31 16:36:04,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:04,172 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 33 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:04,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 541 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-01-31 16:36:04,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2022-01-31 16:36:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 285. [2022-01-31 16:36:04,176 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) [2022-01-31 16:36:04,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 436 transitions. [2022-01-31 16:36:04,177 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 436 transitions. Word has length 113 [2022-01-31 16:36:04,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:04,178 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 436 transitions. [2022-01-31 16:36:04,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:04,178 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 436 transitions. [2022-01-31 16:36:04,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-31 16:36:04,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:04,179 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] [2022-01-31 16:36:04,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-31 16:36:04,179 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:04,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:04,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1137654742, now seen corresponding path program 1 times [2022-01-31 16:36:04,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:04,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236953147] [2022-01-31 16:36:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:04,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:04,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:04,296 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:04,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:04,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236953147] [2022-01-31 16:36:04,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236953147] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:04,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:04,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:04,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659426439] [2022-01-31 16:36:04,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:04,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:04,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:04,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:04,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:04,298 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) [2022-01-31 16:36:06,794 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 [] [2022-01-31 16:36:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:07,726 INFO L93 Difference]: Finished difference Result 392 states and 595 transitions. [2022-01-31 16:36:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:07,727 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 [2022-01-31 16:36:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:07,729 INFO L225 Difference]: With dead ends: 392 [2022-01-31 16:36:07,729 INFO L226 Difference]: Without dead ends: 392 [2022-01-31 16:36:07,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:07,729 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 94 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s 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, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:07,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 535 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:36:07,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-01-31 16:36:07,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 319. [2022-01-31 16:36:07,733 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) [2022-01-31 16:36:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 490 transitions. [2022-01-31 16:36:07,734 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 490 transitions. Word has length 117 [2022-01-31 16:36:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:07,734 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 490 transitions. [2022-01-31 16:36:07,734 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) [2022-01-31 16:36:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 490 transitions. [2022-01-31 16:36:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-31 16:36:07,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:07,735 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] [2022-01-31 16:36:07,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-31 16:36:07,735 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:07,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1383967829, now seen corresponding path program 1 times [2022-01-31 16:36:07,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:07,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663917349] [2022-01-31 16:36:07,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:07,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:07,890 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:07,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:07,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663917349] [2022-01-31 16:36:07,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663917349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:07,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:07,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:07,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91504762] [2022-01-31 16:36:07,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:07,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:07,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:07,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:07,893 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) [2022-01-31 16:36:09,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:11,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:13,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:14,123 INFO L93 Difference]: Finished difference Result 486 states and 747 transitions. [2022-01-31 16:36:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:14,124 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 [2022-01-31 16:36:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:14,126 INFO L225 Difference]: With dead ends: 486 [2022-01-31 16:36:14,126 INFO L226 Difference]: Without dead ends: 486 [2022-01-31 16:36:14,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:14,127 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 133 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:14,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 406 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-01-31 16:36:14,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-01-31 16:36:14,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 349. [2022-01-31 16:36:14,133 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) [2022-01-31 16:36:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 540 transitions. [2022-01-31 16:36:14,134 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 540 transitions. Word has length 117 [2022-01-31 16:36:14,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:14,134 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 540 transitions. [2022-01-31 16:36:14,134 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) [2022-01-31 16:36:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 540 transitions. [2022-01-31 16:36:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-31 16:36:14,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:14,148 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] [2022-01-31 16:36:14,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-31 16:36:14,148 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:14,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:14,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1058943794, now seen corresponding path program 1 times [2022-01-31 16:36:14,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:14,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626341112] [2022-01-31 16:36:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:14,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-01-31 16:36:14,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:14,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626341112] [2022-01-31 16:36:14,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626341112] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:14,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:14,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:14,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069685286] [2022-01-31 16:36:14,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:14,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:14,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:14,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:14,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:14,304 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) [2022-01-31 16:36:15,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:17,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:17,766 INFO L93 Difference]: Finished difference Result 430 states and 651 transitions. [2022-01-31 16:36:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:17,767 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 [2022-01-31 16:36:17,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:17,768 INFO L225 Difference]: With dead ends: 430 [2022-01-31 16:36:17,768 INFO L226 Difference]: Without dead ends: 430 [2022-01-31 16:36:17,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:17,768 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:17,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 376 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-01-31 16:36:17,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-01-31 16:36:17,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 349. [2022-01-31 16:36:17,774 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) [2022-01-31 16:36:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 534 transitions. [2022-01-31 16:36:17,775 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 534 transitions. Word has length 122 [2022-01-31 16:36:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:17,776 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 534 transitions. [2022-01-31 16:36:17,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 534 transitions. [2022-01-31 16:36:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:36:17,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:17,777 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] [2022-01-31 16:36:17,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-31 16:36:17,778 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:17,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:17,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1303023360, now seen corresponding path program 1 times [2022-01-31 16:36:17,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:17,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034685850] [2022-01-31 16:36:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:17,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:17,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:17,906 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:17,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:17,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034685850] [2022-01-31 16:36:17,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034685850] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:17,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:17,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:17,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729063799] [2022-01-31 16:36:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:17,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:17,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:17,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:17,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:17,908 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) [2022-01-31 16:36:20,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:20,798 INFO L93 Difference]: Finished difference Result 446 states and 679 transitions. [2022-01-31 16:36:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:20,799 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 [2022-01-31 16:36:20,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:20,800 INFO L225 Difference]: With dead ends: 446 [2022-01-31 16:36:20,800 INFO L226 Difference]: Without dead ends: 446 [2022-01-31 16:36:20,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:20,801 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 87 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:20,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 513 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:36:20,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-01-31 16:36:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 388. [2022-01-31 16:36:20,807 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) [2022-01-31 16:36:20,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 596 transitions. [2022-01-31 16:36:20,808 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 596 transitions. Word has length 123 [2022-01-31 16:36:20,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:20,808 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 596 transitions. [2022-01-31 16:36:20,808 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) [2022-01-31 16:36:20,809 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 596 transitions. [2022-01-31 16:36:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-31 16:36:20,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:20,810 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] [2022-01-31 16:36:20,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-31 16:36:20,810 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:20,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2124891711, now seen corresponding path program 1 times [2022-01-31 16:36:20,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:20,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838105791] [2022-01-31 16:36:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:20,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:20,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:20,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838105791] [2022-01-31 16:36:20,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838105791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:20,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:20,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:20,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504315591] [2022-01-31 16:36:20,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:20,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:20,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:20,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:20,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:20,926 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) [2022-01-31 16:36:23,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:24,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:24,256 INFO L93 Difference]: Finished difference Result 509 states and 776 transitions. [2022-01-31 16:36:24,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:24,257 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 [2022-01-31 16:36:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:24,259 INFO L225 Difference]: With dead ends: 509 [2022-01-31 16:36:24,259 INFO L226 Difference]: Without dead ends: 509 [2022-01-31 16:36:24,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:24,260 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 128 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:24,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 376 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2022-01-31 16:36:24,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-01-31 16:36:24,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 386. [2022-01-31 16:36:24,265 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) [2022-01-31 16:36:24,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 593 transitions. [2022-01-31 16:36:24,266 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 593 transitions. Word has length 123 [2022-01-31 16:36:24,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:24,266 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 593 transitions. [2022-01-31 16:36:24,267 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) [2022-01-31 16:36:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 593 transitions. [2022-01-31 16:36:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-31 16:36:24,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:24,268 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] [2022-01-31 16:36:24,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-31 16:36:24,268 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:24,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:24,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1648642121, now seen corresponding path program 1 times [2022-01-31 16:36:24,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:24,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833927596] [2022-01-31 16:36:24,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:24,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:24,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:24,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833927596] [2022-01-31 16:36:24,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833927596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:24,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:24,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:24,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636818155] [2022-01-31 16:36:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:24,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:24,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:24,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:24,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:24,387 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) [2022-01-31 16:36:27,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:28,178 INFO L93 Difference]: Finished difference Result 467 states and 708 transitions. [2022-01-31 16:36:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:28,179 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 [2022-01-31 16:36:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:28,180 INFO L225 Difference]: With dead ends: 467 [2022-01-31 16:36:28,180 INFO L226 Difference]: Without dead ends: 467 [2022-01-31 16:36:28,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:28,180 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:28,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 376 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:36:28,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-01-31 16:36:28,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2022-01-31 16:36:28,186 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) [2022-01-31 16:36:28,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 591 transitions. [2022-01-31 16:36:28,187 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 591 transitions. Word has length 124 [2022-01-31 16:36:28,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:28,187 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 591 transitions. [2022-01-31 16:36:28,187 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) [2022-01-31 16:36:28,187 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 591 transitions. [2022-01-31 16:36:28,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-31 16:36:28,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:28,188 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] [2022-01-31 16:36:28,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-31 16:36:28,189 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:28,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:28,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1831808920, now seen corresponding path program 1 times [2022-01-31 16:36:28,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:28,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593542930] [2022-01-31 16:36:28,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:28,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:28,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:28,322 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-01-31 16:36:28,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:28,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593542930] [2022-01-31 16:36:28,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593542930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:28,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:28,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:28,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689392510] [2022-01-31 16:36:28,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:28,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:28,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:28,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:28,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:28,323 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) [2022-01-31 16:36:30,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:31,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:31,954 INFO L93 Difference]: Finished difference Result 473 states and 719 transitions. [2022-01-31 16:36:31,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:31,955 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 [2022-01-31 16:36:31,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:31,960 INFO L225 Difference]: With dead ends: 473 [2022-01-31 16:36:31,960 INFO L226 Difference]: Without dead ends: 473 [2022-01-31 16:36:31,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:31,962 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 68 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s 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, 3.6s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:31,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 513 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-01-31 16:36:31,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-01-31 16:36:31,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 429. [2022-01-31 16:36:31,968 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) [2022-01-31 16:36:31,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 657 transitions. [2022-01-31 16:36:31,969 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 657 transitions. Word has length 131 [2022-01-31 16:36:31,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:31,969 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 657 transitions. [2022-01-31 16:36:31,969 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) [2022-01-31 16:36:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 657 transitions. [2022-01-31 16:36:31,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-31 16:36:31,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:31,971 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] [2022-01-31 16:36:31,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-31 16:36:31,971 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:31,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:31,971 INFO L85 PathProgramCache]: Analyzing trace with hash 346753369, now seen corresponding path program 1 times [2022-01-31 16:36:31,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:31,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166844259] [2022-01-31 16:36:31,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:31,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-01-31 16:36:32,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:32,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166844259] [2022-01-31 16:36:32,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166844259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:32,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:32,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:32,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683735281] [2022-01-31 16:36:32,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:32,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:32,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:32,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:32,087 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) [2022-01-31 16:36:33,275 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:35,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:35,957 INFO L93 Difference]: Finished difference Result 475 states and 722 transitions. [2022-01-31 16:36:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:35,958 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 [2022-01-31 16:36:35,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:35,959 INFO L225 Difference]: With dead ends: 475 [2022-01-31 16:36:35,959 INFO L226 Difference]: Without dead ends: 475 [2022-01-31 16:36:35,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:35,960 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 35 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:35,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 631 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:36:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-01-31 16:36:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 453. [2022-01-31 16:36:35,965 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) [2022-01-31 16:36:35,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 692 transitions. [2022-01-31 16:36:35,966 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 692 transitions. Word has length 131 [2022-01-31 16:36:35,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:35,967 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 692 transitions. [2022-01-31 16:36:35,967 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) [2022-01-31 16:36:35,967 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 692 transitions. [2022-01-31 16:36:35,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-31 16:36:35,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:35,968 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] [2022-01-31 16:36:35,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-31 16:36:35,968 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:35,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:35,969 INFO L85 PathProgramCache]: Analyzing trace with hash -353743273, now seen corresponding path program 1 times [2022-01-31 16:36:35,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:35,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984208832] [2022-01-31 16:36:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:35,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:36,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:36:36,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:36,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984208832] [2022-01-31 16:36:36,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984208832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:36,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:36,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:36,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715457606] [2022-01-31 16:36:36,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:36,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:36,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:36,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:36,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:36,104 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) [2022-01-31 16:36:39,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:41,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:41,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:41,470 INFO L93 Difference]: Finished difference Result 574 states and 866 transitions. [2022-01-31 16:36:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:41,470 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 [2022-01-31 16:36:41,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:41,472 INFO L225 Difference]: With dead ends: 574 [2022-01-31 16:36:41,472 INFO L226 Difference]: Without dead ends: 574 [2022-01-31 16:36:41,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:41,473 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 134 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:41,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 396 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-01-31 16:36:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-01-31 16:36:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 483. [2022-01-31 16:36:41,480 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) [2022-01-31 16:36:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 734 transitions. [2022-01-31 16:36:41,481 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 734 transitions. Word has length 144 [2022-01-31 16:36:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:41,481 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 734 transitions. [2022-01-31 16:36:41,481 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) [2022-01-31 16:36:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 734 transitions. [2022-01-31 16:36:41,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-01-31 16:36:41,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:41,483 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] [2022-01-31 16:36:41,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-31 16:36:41,483 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:41,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:41,483 INFO L85 PathProgramCache]: Analyzing trace with hash -649786349, now seen corresponding path program 1 times [2022-01-31 16:36:41,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:41,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166850752] [2022-01-31 16:36:41,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:41,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:36:41,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:41,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166850752] [2022-01-31 16:36:41,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166850752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:41,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:41,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:41,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388265802] [2022-01-31 16:36:41,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:41,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:41,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:41,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:41,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:41,604 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) [2022-01-31 16:36:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:43,893 INFO L93 Difference]: Finished difference Result 525 states and 793 transitions. [2022-01-31 16:36:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:43,893 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 [2022-01-31 16:36:43,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:43,894 INFO L225 Difference]: With dead ends: 525 [2022-01-31 16:36:43,895 INFO L226 Difference]: Without dead ends: 525 [2022-01-31 16:36:43,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:43,895 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 75 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:43,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 517 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:36:43,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-01-31 16:36:43,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 483. [2022-01-31 16:36:43,901 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) [2022-01-31 16:36:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 733 transitions. [2022-01-31 16:36:43,902 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 733 transitions. Word has length 145 [2022-01-31 16:36:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:43,903 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 733 transitions. [2022-01-31 16:36:43,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:36:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 733 transitions. [2022-01-31 16:36:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-31 16:36:43,904 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:43,904 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] [2022-01-31 16:36:43,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-31 16:36:43,905 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:43,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1698510247, now seen corresponding path program 1 times [2022-01-31 16:36:43,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:43,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670194298] [2022-01-31 16:36:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:43,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-01-31 16:36:44,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:44,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670194298] [2022-01-31 16:36:44,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670194298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:44,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:44,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:44,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460489488] [2022-01-31 16:36:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:44,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:44,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:44,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:44,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:44,027 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) [2022-01-31 16:36:46,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:48,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:49,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:49,542 INFO L93 Difference]: Finished difference Result 554 states and 828 transitions. [2022-01-31 16:36:49,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:49,542 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 [2022-01-31 16:36:49,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:49,544 INFO L225 Difference]: With dead ends: 554 [2022-01-31 16:36:49,544 INFO L226 Difference]: Without dead ends: 554 [2022-01-31 16:36:49,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:49,544 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 142 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:49,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 416 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-01-31 16:36:49,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-01-31 16:36:49,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-01-31 16:36:49,550 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) [2022-01-31 16:36:49,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 724 transitions. [2022-01-31 16:36:49,551 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 724 transitions. Word has length 147 [2022-01-31 16:36:49,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:49,552 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 724 transitions. [2022-01-31 16:36:49,552 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) [2022-01-31 16:36:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 724 transitions. [2022-01-31 16:36:49,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-31 16:36:49,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:49,553 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] [2022-01-31 16:36:49,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-31 16:36:49,553 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:49,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:49,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1339728551, now seen corresponding path program 1 times [2022-01-31 16:36:49,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:49,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034908638] [2022-01-31 16:36:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:49,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:36:49,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:49,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034908638] [2022-01-31 16:36:49,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034908638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:49,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:49,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:49,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086671993] [2022-01-31 16:36:49,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:49,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:49,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:49,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:49,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:49,675 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) [2022-01-31 16:36:52,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:53,660 INFO L93 Difference]: Finished difference Result 515 states and 770 transitions. [2022-01-31 16:36:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:53,661 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 [2022-01-31 16:36:53,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:53,662 INFO L225 Difference]: With dead ends: 515 [2022-01-31 16:36:53,662 INFO L226 Difference]: Without dead ends: 515 [2022-01-31 16:36:53,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:53,666 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 69 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:53,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 531 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-01-31 16:36:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-01-31 16:36:53,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 483. [2022-01-31 16:36:53,672 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) [2022-01-31 16:36:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 723 transitions. [2022-01-31 16:36:53,674 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 723 transitions. Word has length 148 [2022-01-31 16:36:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:53,674 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 723 transitions. [2022-01-31 16:36:53,674 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) [2022-01-31 16:36:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 723 transitions. [2022-01-31 16:36:53,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-31 16:36:53,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:53,675 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] [2022-01-31 16:36:53,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-31 16:36:53,676 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:53,676 INFO L85 PathProgramCache]: Analyzing trace with hash -380938011, now seen corresponding path program 1 times [2022-01-31 16:36:53,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199797516] [2022-01-31 16:36:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:53,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:53,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-01-31 16:36:53,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:53,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199797516] [2022-01-31 16:36:53,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199797516] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:53,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:53,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:53,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527336557] [2022-01-31 16:36:53,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:53,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:53,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:53,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:53,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:53,794 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) [2022-01-31 16:36:56,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:57,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:36:57,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:36:57,613 INFO L93 Difference]: Finished difference Result 554 states and 820 transitions. [2022-01-31 16:36:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:36:57,613 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 [2022-01-31 16:36:57,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:36:57,615 INFO L225 Difference]: With dead ends: 554 [2022-01-31 16:36:57,615 INFO L226 Difference]: Without dead ends: 554 [2022-01-31 16:36:57,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:36:57,616 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 127 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:36:57,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 396 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-01-31 16:36:57,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-01-31 16:36:57,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-01-31 16:36:57,641 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) [2022-01-31 16:36:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 716 transitions. [2022-01-31 16:36:57,642 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 716 transitions. Word has length 149 [2022-01-31 16:36:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:36:57,642 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 716 transitions. [2022-01-31 16:36:57,642 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) [2022-01-31 16:36:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 716 transitions. [2022-01-31 16:36:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 16:36:57,644 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:36:57,644 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] [2022-01-31 16:36:57,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-31 16:36:57,644 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:36:57,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:36:57,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1930272966, now seen corresponding path program 1 times [2022-01-31 16:36:57,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:36:57,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002085733] [2022-01-31 16:36:57,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:36:57,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:36:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:57,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:36:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:36:57,756 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:36:57,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:36:57,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002085733] [2022-01-31 16:36:57,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002085733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:36:57,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:36:57,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:36:57,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256715876] [2022-01-31 16:36:57,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:36:57,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:36:57,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:36:57,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:36:57,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:36:57,758 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) [2022-01-31 16:37:00,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:01,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:01,870 INFO L93 Difference]: Finished difference Result 554 states and 813 transitions. [2022-01-31 16:37:01,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:01,871 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 [2022-01-31 16:37:01,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:01,872 INFO L225 Difference]: With dead ends: 554 [2022-01-31 16:37:01,872 INFO L226 Difference]: Without dead ends: 554 [2022-01-31 16:37:01,872 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 [2022-01-31 16:37:01,873 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:01,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 410 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:37:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2022-01-31 16:37:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 483. [2022-01-31 16:37:01,877 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) [2022-01-31 16:37:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 709 transitions. [2022-01-31 16:37:01,879 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 709 transitions. Word has length 153 [2022-01-31 16:37:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:01,879 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 709 transitions. [2022-01-31 16:37:01,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:01,879 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 709 transitions. [2022-01-31 16:37:01,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 16:37:01,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:01,880 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] [2022-01-31 16:37:01,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-31 16:37:01,881 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:01,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1871052229, now seen corresponding path program 1 times [2022-01-31 16:37:01,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:01,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123257025] [2022-01-31 16:37:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:01,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:01,984 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:37:01,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:01,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123257025] [2022-01-31 16:37:01,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123257025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:01,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:01,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:01,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271669606] [2022-01-31 16:37:01,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:01,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:01,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:01,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:01,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:01,986 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) [2022-01-31 16:37:03,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:04,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:05,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:05,224 INFO L93 Difference]: Finished difference Result 935 states and 1367 transitions. [2022-01-31 16:37:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:05,224 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 [2022-01-31 16:37:05,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:05,227 INFO L225 Difference]: With dead ends: 935 [2022-01-31 16:37:05,227 INFO L226 Difference]: Without dead ends: 935 [2022-01-31 16:37:05,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:05,228 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:05,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 447 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-01-31 16:37:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2022-01-31 16:37:05,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 933. [2022-01-31 16:37:05,238 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) [2022-01-31 16:37:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1366 transitions. [2022-01-31 16:37:05,240 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1366 transitions. Word has length 153 [2022-01-31 16:37:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:05,240 INFO L470 AbstractCegarLoop]: Abstraction has 933 states and 1366 transitions. [2022-01-31 16:37:05,241 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) [2022-01-31 16:37:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1366 transitions. [2022-01-31 16:37:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 16:37:05,243 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:05,243 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] [2022-01-31 16:37:05,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-31 16:37:05,243 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:05,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:05,243 INFO L85 PathProgramCache]: Analyzing trace with hash -794498820, now seen corresponding path program 1 times [2022-01-31 16:37:05,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:05,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959537523] [2022-01-31 16:37:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:05,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:05,361 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-01-31 16:37:05,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:05,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959537523] [2022-01-31 16:37:05,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959537523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:05,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:05,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:05,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017648652] [2022-01-31 16:37:05,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:05,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:05,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:05,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:05,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:05,363 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) [2022-01-31 16:37:08,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:09,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:09,068 INFO L93 Difference]: Finished difference Result 960 states and 1401 transitions. [2022-01-31 16:37:09,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:09,068 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 [2022-01-31 16:37:09,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:09,071 INFO L225 Difference]: With dead ends: 960 [2022-01-31 16:37:09,071 INFO L226 Difference]: Without dead ends: 960 [2022-01-31 16:37:09,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:09,072 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:09,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 427 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-01-31 16:37:09,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2022-01-31 16:37:09,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2022-01-31 16:37:09,081 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) [2022-01-31 16:37:09,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1401 transitions. [2022-01-31 16:37:09,083 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1401 transitions. Word has length 153 [2022-01-31 16:37:09,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:09,083 INFO L470 AbstractCegarLoop]: Abstraction has 960 states and 1401 transitions. [2022-01-31 16:37:09,084 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) [2022-01-31 16:37:09,084 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1401 transitions. [2022-01-31 16:37:09,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-31 16:37:09,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:09,086 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] [2022-01-31 16:37:09,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-31 16:37:09,086 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:09,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:09,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1135732029, now seen corresponding path program 1 times [2022-01-31 16:37:09,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:09,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93144018] [2022-01-31 16:37:09,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:09,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-01-31 16:37:09,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93144018] [2022-01-31 16:37:09,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93144018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:09,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:09,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 16:37:09,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749769068] [2022-01-31 16:37:09,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:09,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 16:37:09,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:09,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 16:37:09,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:09,187 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) [2022-01-31 16:37:10,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:11,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:11,994 INFO L93 Difference]: Finished difference Result 962 states and 1403 transitions. [2022-01-31 16:37:11,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-31 16:37:11,994 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 [2022-01-31 16:37:11,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:11,997 INFO L225 Difference]: With dead ends: 962 [2022-01-31 16:37:11,997 INFO L226 Difference]: Without dead ends: 962 [2022-01-31 16:37:11,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 16:37:11,998 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:11,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 406 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-31 16:37:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-01-31 16:37:12,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-01-31 16:37:12,007 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) [2022-01-31 16:37:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1403 transitions. [2022-01-31 16:37:12,009 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1403 transitions. Word has length 153 [2022-01-31 16:37:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:12,010 INFO L470 AbstractCegarLoop]: Abstraction has 962 states and 1403 transitions. [2022-01-31 16:37:12,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1403 transitions. [2022-01-31 16:37:12,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-31 16:37:12,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:12,012 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] [2022-01-31 16:37:12,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-31 16:37:12,012 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:12,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1936906933, now seen corresponding path program 1 times [2022-01-31 16:37:12,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:12,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703671481] [2022-01-31 16:37:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:12,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-31 16:37:12,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:12,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703671481] [2022-01-31 16:37:12,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703671481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:12,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:12,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-31 16:37:12,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402377615] [2022-01-31 16:37:12,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:12,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-31 16:37:12,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:12,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-31 16:37:12,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:12,143 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) [2022-01-31 16:37:13,793 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 [] [2022-01-31 16:37:15,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:17,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:17,839 INFO L93 Difference]: Finished difference Result 1493 states and 2171 transitions. [2022-01-31 16:37:17,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-31 16:37:17,839 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 [2022-01-31 16:37:17,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:17,842 INFO L225 Difference]: With dead ends: 1493 [2022-01-31 16:37:17,843 INFO L226 Difference]: Without dead ends: 1493 [2022-01-31 16:37:17,843 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 [2022-01-31 16:37:17,843 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 92 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:17,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 835 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-01-31 16:37:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-01-31 16:37:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1475. [2022-01-31 16:37:17,860 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) [2022-01-31 16:37:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2154 transitions. [2022-01-31 16:37:17,863 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2154 transitions. Word has length 154 [2022-01-31 16:37:17,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:17,863 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2154 transitions. [2022-01-31 16:37:17,863 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) [2022-01-31 16:37:17,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2154 transitions. [2022-01-31 16:37:17,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-01-31 16:37:17,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:17,866 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] [2022-01-31 16:37:17,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-31 16:37:17,866 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:17,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1933578057, now seen corresponding path program 1 times [2022-01-31 16:37:17,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:17,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210025002] [2022-01-31 16:37:17,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:17,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:37:17,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:17,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210025002] [2022-01-31 16:37:17,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210025002] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:17,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:17,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:17,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496888928] [2022-01-31 16:37:17,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:17,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:17,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:17,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:17,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:17,987 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) [2022-01-31 16:37:20,352 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:22,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:22,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:22,977 INFO L93 Difference]: Finished difference Result 1604 states and 2310 transitions. [2022-01-31 16:37:22,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:22,977 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 [2022-01-31 16:37:22,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:22,981 INFO L225 Difference]: With dead ends: 1604 [2022-01-31 16:37:22,981 INFO L226 Difference]: Without dead ends: 1604 [2022-01-31 16:37:22,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:22,981 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 130 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:22,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 406 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-01-31 16:37:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-01-31 16:37:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1475. [2022-01-31 16:37:22,995 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) [2022-01-31 16:37:22,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2131 transitions. [2022-01-31 16:37:22,997 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2131 transitions. Word has length 155 [2022-01-31 16:37:22,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:22,998 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 2131 transitions. [2022-01-31 16:37:22,998 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) [2022-01-31 16:37:22,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2131 transitions. [2022-01-31 16:37:23,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-31 16:37:23,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:23,001 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] [2022-01-31 16:37:23,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-31 16:37:23,001 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1187930418, now seen corresponding path program 1 times [2022-01-31 16:37:23,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:23,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676703518] [2022-01-31 16:37:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:23,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-31 16:37:23,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:23,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676703518] [2022-01-31 16:37:23,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676703518] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:23,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:23,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:23,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435764213] [2022-01-31 16:37:23,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:23,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:23,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:23,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:23,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:23,112 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) [2022-01-31 16:37:26,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:26,661 INFO L93 Difference]: Finished difference Result 1855 states and 2660 transitions. [2022-01-31 16:37:26,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:26,662 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 [2022-01-31 16:37:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:26,666 INFO L225 Difference]: With dead ends: 1855 [2022-01-31 16:37:26,666 INFO L226 Difference]: Without dead ends: 1855 [2022-01-31 16:37:26,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:26,666 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 119 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.5s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:26,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 406 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-01-31 16:37:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2022-01-31 16:37:26,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1615. [2022-01-31 16:37:26,681 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) [2022-01-31 16:37:26,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2324 transitions. [2022-01-31 16:37:26,683 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2324 transitions. Word has length 156 [2022-01-31 16:37:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:26,683 INFO L470 AbstractCegarLoop]: Abstraction has 1615 states and 2324 transitions. [2022-01-31 16:37:26,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2324 transitions. [2022-01-31 16:37:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-31 16:37:26,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:26,686 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] [2022-01-31 16:37:26,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-31 16:37:26,686 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:26,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:26,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1360449574, now seen corresponding path program 1 times [2022-01-31 16:37:26,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:26,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368165582] [2022-01-31 16:37:26,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:26,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-01-31 16:37:26,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:26,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368165582] [2022-01-31 16:37:26,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368165582] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:26,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:26,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:26,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688115533] [2022-01-31 16:37:26,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:26,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:26,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:26,805 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) [2022-01-31 16:37:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:29,123 INFO L93 Difference]: Finished difference Result 1744 states and 2488 transitions. [2022-01-31 16:37:29,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:29,123 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 [2022-01-31 16:37:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:29,127 INFO L225 Difference]: With dead ends: 1744 [2022-01-31 16:37:29,127 INFO L226 Difference]: Without dead ends: 1744 [2022-01-31 16:37:29,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:29,129 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 118 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:29,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-31 16:37:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-01-31 16:37:29,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1613. [2022-01-31 16:37:29,141 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) [2022-01-31 16:37:29,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2307 transitions. [2022-01-31 16:37:29,143 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2307 transitions. Word has length 157 [2022-01-31 16:37:29,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:29,143 INFO L470 AbstractCegarLoop]: Abstraction has 1613 states and 2307 transitions. [2022-01-31 16:37:29,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2307 transitions. [2022-01-31 16:37:29,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-01-31 16:37:29,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:29,146 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] [2022-01-31 16:37:29,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-31 16:37:29,146 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:29,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:29,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1924593925, now seen corresponding path program 1 times [2022-01-31 16:37:29,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:29,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310128867] [2022-01-31 16:37:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:29,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:37:29,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:29,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310128867] [2022-01-31 16:37:29,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310128867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:29,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:29,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:29,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771729742] [2022-01-31 16:37:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:29,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:29,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:29,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:29,257 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) [2022-01-31 16:37:30,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:32,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:33,356 INFO L93 Difference]: Finished difference Result 1987 states and 2809 transitions. [2022-01-31 16:37:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:33,357 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 [2022-01-31 16:37:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:33,363 INFO L225 Difference]: With dead ends: 1987 [2022-01-31 16:37:33,363 INFO L226 Difference]: Without dead ends: 1987 [2022-01-31 16:37:33,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:33,364 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 127 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:33,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-01-31 16:37:33,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2022-01-31 16:37:33,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1717. [2022-01-31 16:37:33,382 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) [2022-01-31 16:37:33,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2428 transitions. [2022-01-31 16:37:33,384 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2428 transitions. Word has length 160 [2022-01-31 16:37:33,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:33,384 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2428 transitions. [2022-01-31 16:37:33,384 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) [2022-01-31 16:37:33,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2428 transitions. [2022-01-31 16:37:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-01-31 16:37:33,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:33,387 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] [2022-01-31 16:37:33,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-31 16:37:33,387 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1323780289, now seen corresponding path program 1 times [2022-01-31 16:37:33,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:33,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510607007] [2022-01-31 16:37:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:33,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:37:33,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:33,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510607007] [2022-01-31 16:37:33,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510607007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:33,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:33,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:33,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174797787] [2022-01-31 16:37:33,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:33,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:33,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:33,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:33,503 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) [2022-01-31 16:37:36,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:37,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:37,749 INFO L93 Difference]: Finished difference Result 1846 states and 2580 transitions. [2022-01-31 16:37:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:37,750 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 [2022-01-31 16:37:37,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:37,756 INFO L225 Difference]: With dead ends: 1846 [2022-01-31 16:37:37,756 INFO L226 Difference]: Without dead ends: 1846 [2022-01-31 16:37:37,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:37,756 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 126 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.2s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:37,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 408 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-01-31 16:37:37,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-01-31 16:37:37,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1717. [2022-01-31 16:37:37,771 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) [2022-01-31 16:37:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2401 transitions. [2022-01-31 16:37:37,773 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2401 transitions. Word has length 161 [2022-01-31 16:37:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:37,773 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2401 transitions. [2022-01-31 16:37:37,773 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) [2022-01-31 16:37:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2401 transitions. [2022-01-31 16:37:37,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-01-31 16:37:37,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:37,775 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] [2022-01-31 16:37:37,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-31 16:37:37,776 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:37,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1048598705, now seen corresponding path program 1 times [2022-01-31 16:37:37,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:37,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710001467] [2022-01-31 16:37:37,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:37,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:37,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:37:37,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:37,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710001467] [2022-01-31 16:37:37,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710001467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:37,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:37,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:37,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188406260] [2022-01-31 16:37:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:37,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:37,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:37,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:37,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:37,904 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) [2022-01-31 16:37:39,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:40,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:40,833 INFO L93 Difference]: Finished difference Result 1762 states and 2456 transitions. [2022-01-31 16:37:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:40,833 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 [2022-01-31 16:37:40,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:40,838 INFO L225 Difference]: With dead ends: 1762 [2022-01-31 16:37:40,838 INFO L226 Difference]: Without dead ends: 1762 [2022-01-31 16:37:40,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:40,839 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 37 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 2.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:40,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 563 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-31 16:37:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2022-01-31 16:37:40,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1717. [2022-01-31 16:37:40,855 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) [2022-01-31 16:37:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2398 transitions. [2022-01-31 16:37:40,858 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2398 transitions. Word has length 164 [2022-01-31 16:37:40,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:40,858 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2398 transitions. [2022-01-31 16:37:40,858 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) [2022-01-31 16:37:40,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2398 transitions. [2022-01-31 16:37:40,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-01-31 16:37:40,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:40,861 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] [2022-01-31 16:37:40,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-31 16:37:40,861 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:40,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1501818664, now seen corresponding path program 1 times [2022-01-31 16:37:40,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:40,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822983597] [2022-01-31 16:37:40,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:40,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-01-31 16:37:40,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:40,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822983597] [2022-01-31 16:37:40,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822983597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:40,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:40,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:40,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618375947] [2022-01-31 16:37:40,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:40,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:40,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:40,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:40,972 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) [2022-01-31 16:37:43,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:44,916 INFO L93 Difference]: Finished difference Result 1744 states and 2428 transitions. [2022-01-31 16:37:44,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:44,916 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 [2022-01-31 16:37:44,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:44,922 INFO L225 Difference]: With dead ends: 1744 [2022-01-31 16:37:44,922 INFO L226 Difference]: Without dead ends: 1744 [2022-01-31 16:37:44,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:44,923 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 28 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:44,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 563 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-01-31 16:37:44,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2022-01-31 16:37:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1706. [2022-01-31 16:37:44,941 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) [2022-01-31 16:37:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2384 transitions. [2022-01-31 16:37:44,943 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2384 transitions. Word has length 165 [2022-01-31 16:37:44,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:44,943 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2384 transitions. [2022-01-31 16:37:44,944 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) [2022-01-31 16:37:44,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2384 transitions. [2022-01-31 16:37:44,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-01-31 16:37:44,946 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:44,946 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] [2022-01-31 16:37:44,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-31 16:37:44,946 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:44,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:44,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1494416010, now seen corresponding path program 1 times [2022-01-31 16:37:44,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:44,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310409646] [2022-01-31 16:37:44,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:44,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-01-31 16:37:45,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:45,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310409646] [2022-01-31 16:37:45,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310409646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:45,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:45,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 16:37:45,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786861797] [2022-01-31 16:37:45,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:45,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 16:37:45,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:45,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 16:37:45,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-31 16:37:45,079 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) [2022-01-31 16:37:47,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:49,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:51,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:51,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:51,440 INFO L93 Difference]: Finished difference Result 1740 states and 2422 transitions. [2022-01-31 16:37:51,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 16:37:51,441 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 [2022-01-31 16:37:51,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:51,443 INFO L225 Difference]: With dead ends: 1740 [2022-01-31 16:37:51,443 INFO L226 Difference]: Without dead ends: 1740 [2022-01-31 16:37:51,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-31 16:37:51,444 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 22 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s 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, 6.3s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:51,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 600 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 432 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-01-31 16:37:51,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2022-01-31 16:37:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1706. [2022-01-31 16:37:51,458 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) [2022-01-31 16:37:51,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2380 transitions. [2022-01-31 16:37:51,461 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2380 transitions. Word has length 167 [2022-01-31 16:37:51,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:51,461 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2380 transitions. [2022-01-31 16:37:51,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-31 16:37:51,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2380 transitions. [2022-01-31 16:37:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 16:37:51,463 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:51,463 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] [2022-01-31 16:37:51,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-31 16:37:51,464 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1891628692, now seen corresponding path program 1 times [2022-01-31 16:37:51,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:51,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564826632] [2022-01-31 16:37:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:51,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:37:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:37:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:37:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-01-31 16:37:51,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:37:51,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564826632] [2022-01-31 16:37:51,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564826632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 16:37:51,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 16:37:51,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-31 16:37:51,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562650642] [2022-01-31 16:37:51,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 16:37:51,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-31 16:37:51,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-31 16:37:51,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-31 16:37:51,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-31 16:37:51,911 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) [2022-01-31 16:37:53,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:55,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:58,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-31 16:37:59,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 16:37:59,660 INFO L93 Difference]: Finished difference Result 1714 states and 2390 transitions. [2022-01-31 16:37:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-31 16:37:59,661 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 [2022-01-31 16:37:59,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 16:37:59,663 INFO L225 Difference]: With dead ends: 1714 [2022-01-31 16:37:59,663 INFO L226 Difference]: Without dead ends: 1706 [2022-01-31 16:37:59,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-01-31 16:37:59,664 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 7 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s 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, 7.7s IncrementalHoareTripleChecker+Time [2022-01-31 16:37:59,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 892 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-01-31 16:37:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2022-01-31 16:37:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2022-01-31 16:37:59,681 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) [2022-01-31 16:37:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2379 transitions. [2022-01-31 16:37:59,683 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2379 transitions. Word has length 174 [2022-01-31 16:37:59,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 16:37:59,683 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2379 transitions. [2022-01-31 16:37:59,684 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) [2022-01-31 16:37:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2379 transitions. [2022-01-31 16:37:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-01-31 16:37:59,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 16:37:59,686 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] [2022-01-31 16:37:59,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-31 16:37:59,686 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 16:37:59,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 16:37:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1546712947, now seen corresponding path program 1 times [2022-01-31 16:37:59,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-31 16:37:59,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784092753] [2022-01-31 16:37:59,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:37:59,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 16:38:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 16:38:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-01-31 16:38:00,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-31 16:38:00,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784092753] [2022-01-31 16:38:00,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784092753] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-31 16:38:00,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743085909] [2022-01-31 16:38:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 16:38:00,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-31 16:38:00,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 16:38:00,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-31 16:38:00,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-31 16:38:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 16:38:01,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 218 conjunts are in the unsatisfiable core [2022-01-31 16:38:01,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-31 16:38:01,828 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62713 treesize of output 58328 [2022-01-31 16:38:01,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,918 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55477 treesize of output 39384 [2022-01-31 16:38:01,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:01,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,114 INFO L244 Elim1Store]: Index analysis took 130 ms [2022-01-31 16:38:02,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17488 treesize of output 17507 [2022-01-31 16:38:02,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,179 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11296 treesize of output 11315 [2022-01-31 16:38:02,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-31 16:38:02,328 INFO L353 Elim1Store]: treesize reduction 138, result has 16.9 percent of original size [2022-01-31 16:38:02,329 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 13340 treesize of output 5109 [2022-01-31 16:38:02,345 INFO L190 IndexEqualityManager]: detected not equals via solver