/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.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 00:45:09,597 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 00:45:09,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 00:45:09,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 00:45:09,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 00:45:09,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 00:45:09,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 00:45:09,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 00:45:09,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 00:45:09,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 00:45:09,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 00:45:09,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 00:45:09,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 00:45:09,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 00:45:09,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 00:45:09,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 00:45:09,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 00:45:09,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 00:45:09,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 00:45:09,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 00:45:09,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 00:45:09,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 00:45:09,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 00:45:09,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 00:45:09,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-15 00:45:09,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-15 00:45:09,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-15 00:45:09,658 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-15 00:45:09,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-15 00:45:09,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-15 00:45:09,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-15 00:45:09,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-15 00:45:09,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-15 00:45:09,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-15 00:45:09,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-15 00:45:09,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-15 00:45:09,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-15 00:45:09,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-15 00:45:09,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 00:45:09,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 00:45:09,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 00:45:09,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-02-15 00:45:09,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 00:45:09,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 00:45:09,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 00:45:09,677 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 00:45:09,677 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 00:45:09,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 00:45:09,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 00:45:09,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 00:45:09,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 00:45:09,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 00:45:09,678 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 00:45:09,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 00:45:09,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 00:45:09,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 00:45:09,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 00:45:09,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 00:45:09,679 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 00:45:09,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 00:45:09,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:45:09,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 00:45:09,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-15 00:45:09,680 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-15 00:45:09,680 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 00:45:09,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 00:45:09,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 00:45:09,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 00:45:09,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 00:45:09,849 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 00:45:09,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-02-15 00:45:09,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248b52078/86cbf1433b3e4c36b5d4cf2f54d1d246/FLAG4d134156b [2022-02-15 00:45:10,338 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 00:45:10,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-02-15 00:45:10,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248b52078/86cbf1433b3e4c36b5d4cf2f54d1d246/FLAG4d134156b [2022-02-15 00:45:10,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/248b52078/86cbf1433b3e4c36b5d4cf2f54d1d246 [2022-02-15 00:45:10,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 00:45:10,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-15 00:45:10,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 00:45:10,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 00:45:10,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 00:45:10,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434d5910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10, skipping insertion in model container [2022-02-15 00:45:10,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 00:45:10,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 00:45:10,705 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.10.i.cil-1.c[73581,73594] [2022-02-15 00:45:10,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:45:10,724 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 00:45:10,794 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.10.i.cil-1.c[73581,73594] [2022-02-15 00:45:10,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 00:45:10,806 INFO L208 MainTranslator]: Completed translation [2022-02-15 00:45:10,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10 WrapperNode [2022-02-15 00:45:10,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 00:45:10,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 00:45:10,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 00:45:10,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 00:45:10,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 00:45:10,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 00:45:10,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 00:45:10,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 00:45:10,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (1/1) ... [2022-02-15 00:45:10,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 00:45:10,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:45:10,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-15 00:45:10,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-15 00:45:10,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 00:45:10,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 00:45:10,978 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 00:45:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 00:45:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 00:45:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 00:45:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 00:45:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 00:45:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 00:45:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 00:45:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 00:45:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 00:45:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 00:45:11,114 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 00:45:11,115 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 00:45:11,780 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 00:45:12,132 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 00:45:12,132 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 00:45:12,142 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 00:45:12,148 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 00:45:12,148 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 00:45:12,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:45:12 BoogieIcfgContainer [2022-02-15 00:45:12,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 00:45:12,150 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-02-15 00:45:12,150 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-02-15 00:45:12,151 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-02-15 00:45:12,162 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:45:12" (1/1) ... [2022-02-15 00:45:12,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:45:12 BasicIcfg [2022-02-15 00:45:12,219 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-02-15 00:45:12,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 00:45:12,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 00:45:12,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 00:45:12,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:45:10" (1/4) ... [2022-02-15 00:45:12,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d205c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:45:12, skipping insertion in model container [2022-02-15 00:45:12,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:45:10" (2/4) ... [2022-02-15 00:45:12,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d205c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:45:12, skipping insertion in model container [2022-02-15 00:45:12,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:45:12" (3/4) ... [2022-02-15 00:45:12,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d205c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:45:12, skipping insertion in model container [2022-02-15 00:45:12,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.02 12:45:12" (4/4) ... [2022-02-15 00:45:12,226 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cJordan [2022-02-15 00:45:12,230 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-02-15 00:45:12,231 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 00:45:12,271 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 00:45:12,277 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-15 00:45:12,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 00:45:12,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 00:45:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-02-15 00:45:12,311 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:12,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:12,312 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:12,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:12,316 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-02-15 00:45:12,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:12,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543772026] [2022-02-15 00:45:12,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:12,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:45:12,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:12,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543772026] [2022-02-15 00:45:12,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543772026] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:12,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:12,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:12,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536194406] [2022-02-15 00:45:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:12,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:12,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:12,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:12,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:12,832 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:15,307 INFO L93 Difference]: Finished difference Result 283 states and 469 transitions. [2022-02-15 00:45:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:15,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-02-15 00:45:15,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:15,316 INFO L225 Difference]: With dead ends: 283 [2022-02-15 00:45:15,316 INFO L226 Difference]: Without dead ends: 257 [2022-02-15 00:45:15,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:15,320 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 150 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:15,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 451 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:45:15,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-15 00:45:15,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 180. [2022-02-15 00:45:15,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 175 states have (on average 1.6) internal successors, (280), 175 states have internal predecessors, (280), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 284 transitions. [2022-02-15 00:45:15,353 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 284 transitions. Word has length 49 [2022-02-15 00:45:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:15,354 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 284 transitions. [2022-02-15 00:45:15,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:15,354 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 284 transitions. [2022-02-15 00:45:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-02-15 00:45:15,355 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:15,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:15,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 00:45:15,356 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1424421714, now seen corresponding path program 1 times [2022-02-15 00:45:15,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:15,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315735870] [2022-02-15 00:45:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:15,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:45:15,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:15,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315735870] [2022-02-15 00:45:15,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315735870] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:15,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:15,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:15,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907511450] [2022-02-15 00:45:15,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:15,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:15,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:15,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:15,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:15,527 INFO L87 Difference]: Start difference. First operand 180 states and 284 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:18,159 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 [] [2022-02-15 00:45:19,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:19,533 INFO L93 Difference]: Finished difference Result 296 states and 463 transitions. [2022-02-15 00:45:19,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:19,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-02-15 00:45:19,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:19,535 INFO L225 Difference]: With dead ends: 296 [2022-02-15 00:45:19,535 INFO L226 Difference]: Without dead ends: 296 [2022-02-15 00:45:19,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:19,536 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:19,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:45:19,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-02-15 00:45:19,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 220. [2022-02-15 00:45:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 215 states have (on average 1.6465116279069767) internal successors, (354), 215 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:19,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 358 transitions. [2022-02-15 00:45:19,546 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 358 transitions. Word has length 50 [2022-02-15 00:45:19,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:19,546 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 358 transitions. [2022-02-15 00:45:19,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 358 transitions. [2022-02-15 00:45:19,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-15 00:45:19,548 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:19,548 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:19,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 00:45:19,549 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:19,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:19,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1123828743, now seen corresponding path program 1 times [2022-02-15 00:45:19,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:19,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891584730] [2022-02-15 00:45:19,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:19,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:19,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-02-15 00:45:19,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:19,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891584730] [2022-02-15 00:45:19,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891584730] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:19,684 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:19,684 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:19,684 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146045890] [2022-02-15 00:45:19,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:19,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:19,684 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:19,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:19,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:19,685 INFO L87 Difference]: Start difference. First operand 220 states and 358 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:21,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:22,570 INFO L93 Difference]: Finished difference Result 248 states and 398 transitions. [2022-02-15 00:45:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:22,571 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 78 [2022-02-15 00:45:22,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:22,572 INFO L225 Difference]: With dead ends: 248 [2022-02-15 00:45:22,572 INFO L226 Difference]: Without dead ends: 248 [2022-02-15 00:45:22,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:22,573 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:22,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 469 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-15 00:45:22,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-02-15 00:45:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-02-15 00:45:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6504424778761062) internal successors, (373), 226 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 377 transitions. [2022-02-15 00:45:22,580 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 377 transitions. Word has length 78 [2022-02-15 00:45:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:22,581 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 377 transitions. [2022-02-15 00:45:22,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 377 transitions. [2022-02-15 00:45:22,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-15 00:45:22,583 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:22,583 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:22,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 00:45:22,583 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:22,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:22,584 INFO L85 PathProgramCache]: Analyzing trace with hash 959141718, now seen corresponding path program 1 times [2022-02-15 00:45:22,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:22,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546197772] [2022-02-15 00:45:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:22,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:22,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:22,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546197772] [2022-02-15 00:45:22,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546197772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:22,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:22,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:22,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357528286] [2022-02-15 00:45:22,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:22,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:22,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:22,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:22,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:22,732 INFO L87 Difference]: Start difference. First operand 231 states and 377 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:24,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:26,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:28,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:28,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:28,876 INFO L93 Difference]: Finished difference Result 248 states and 397 transitions. [2022-02-15 00:45:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:28,876 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 91 [2022-02-15 00:45:28,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:28,877 INFO L225 Difference]: With dead ends: 248 [2022-02-15 00:45:28,877 INFO L226 Difference]: Without dead ends: 248 [2022-02-15 00:45:28,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:28,878 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:28,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:45:28,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-02-15 00:45:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 231. [2022-02-15 00:45:28,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6460176991150441) internal successors, (372), 226 states have internal predecessors, (372), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:28,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 376 transitions. [2022-02-15 00:45:28,886 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 376 transitions. Word has length 91 [2022-02-15 00:45:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:28,886 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 376 transitions. [2022-02-15 00:45:28,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 376 transitions. [2022-02-15 00:45:28,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 00:45:28,888 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:28,888 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:28,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 00:45:28,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:28,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:28,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1315439647, now seen corresponding path program 1 times [2022-02-15 00:45:28,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:28,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320841714] [2022-02-15 00:45:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:28,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:29,015 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:29,015 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:29,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320841714] [2022-02-15 00:45:29,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320841714] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:29,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:29,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:29,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493302087] [2022-02-15 00:45:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:29,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:29,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:29,017 INFO L87 Difference]: Start difference. First operand 231 states and 376 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:30,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:32,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:34,210 INFO L93 Difference]: Finished difference Result 247 states and 395 transitions. [2022-02-15 00:45:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:34,210 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 92 [2022-02-15 00:45:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:34,211 INFO L225 Difference]: With dead ends: 247 [2022-02-15 00:45:34,211 INFO L226 Difference]: Without dead ends: 247 [2022-02-15 00:45:34,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:34,212 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:34,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:45:34,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-02-15 00:45:34,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 231. [2022-02-15 00:45:34,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6415929203539823) internal successors, (371), 226 states have internal predecessors, (371), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 375 transitions. [2022-02-15 00:45:34,220 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 375 transitions. Word has length 92 [2022-02-15 00:45:34,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:34,220 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 375 transitions. [2022-02-15 00:45:34,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 375 transitions. [2022-02-15 00:45:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 00:45:34,222 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:34,222 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:34,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 00:45:34,222 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:34,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:34,222 INFO L85 PathProgramCache]: Analyzing trace with hash 660427777, now seen corresponding path program 1 times [2022-02-15 00:45:34,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:34,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314214002] [2022-02-15 00:45:34,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:34,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:34,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:34,350 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:34,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:34,351 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314214002] [2022-02-15 00:45:34,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314214002] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:34,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:34,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:34,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141312772] [2022-02-15 00:45:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:34,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:34,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:34,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:34,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:34,353 INFO L87 Difference]: Start difference. First operand 231 states and 375 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:36,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:38,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:40,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:42,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:42,581 INFO L93 Difference]: Finished difference Result 307 states and 477 transitions. [2022-02-15 00:45:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:42,581 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 92 [2022-02-15 00:45:42,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:42,583 INFO L225 Difference]: With dead ends: 307 [2022-02-15 00:45:42,583 INFO L226 Difference]: Without dead ends: 307 [2022-02-15 00:45:42,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:42,583 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 144 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:42,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 480 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-02-15 00:45:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-02-15 00:45:42,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-02-15 00:45:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6283185840707965) internal successors, (368), 226 states have internal predecessors, (368), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 372 transitions. [2022-02-15 00:45:42,589 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 372 transitions. Word has length 92 [2022-02-15 00:45:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:42,589 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 372 transitions. [2022-02-15 00:45:42,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 372 transitions. [2022-02-15 00:45:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 00:45:42,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:42,590 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:42,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 00:45:42,590 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:42,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash -817795007, now seen corresponding path program 1 times [2022-02-15 00:45:42,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:42,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991200789] [2022-02-15 00:45:42,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:42,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:42,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:42,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991200789] [2022-02-15 00:45:42,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991200789] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:42,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:42,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:42,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767765322] [2022-02-15 00:45:42,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:42,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:42,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:42,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:42,704 INFO L87 Difference]: Start difference. First operand 231 states and 372 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:45,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:45,122 INFO L93 Difference]: Finished difference Result 245 states and 389 transitions. [2022-02-15 00:45:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:45,123 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 92 [2022-02-15 00:45:45,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:45,128 INFO L225 Difference]: With dead ends: 245 [2022-02-15 00:45:45,128 INFO L226 Difference]: Without dead ends: 245 [2022-02-15 00:45:45,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:45,130 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:45,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:45:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-02-15 00:45:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 231. [2022-02-15 00:45:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6238938053097345) internal successors, (367), 226 states have internal predecessors, (367), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:45,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 371 transitions. [2022-02-15 00:45:45,140 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 371 transitions. Word has length 92 [2022-02-15 00:45:45,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:45,140 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 371 transitions. [2022-02-15 00:45:45,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:45,140 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 371 transitions. [2022-02-15 00:45:45,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 00:45:45,141 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:45,141 INFO L514 BasicCegarLoop]: trace histogram [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, 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] [2022-02-15 00:45:45,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 00:45:45,142 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:45,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:45,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1735376737, now seen corresponding path program 1 times [2022-02-15 00:45:45,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:45,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847655720] [2022-02-15 00:45:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:45,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:45,249 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:45,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:45,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847655720] [2022-02-15 00:45:45,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847655720] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:45,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:45,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:45,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542171282] [2022-02-15 00:45:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:45,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:45,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:45,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:45,251 INFO L87 Difference]: Start difference. First operand 231 states and 371 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:46,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:49,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:49,434 INFO L93 Difference]: Finished difference Result 244 states and 387 transitions. [2022-02-15 00:45:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:49,434 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 92 [2022-02-15 00:45:49,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:49,435 INFO L225 Difference]: With dead ends: 244 [2022-02-15 00:45:49,435 INFO L226 Difference]: Without dead ends: 244 [2022-02-15 00:45:49,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:49,436 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:49,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 00:45:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-02-15 00:45:49,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-02-15 00:45:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6194690265486726) internal successors, (366), 226 states have internal predecessors, (366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 370 transitions. [2022-02-15 00:45:49,440 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 370 transitions. Word has length 92 [2022-02-15 00:45:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:49,440 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 370 transitions. [2022-02-15 00:45:49,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:49,441 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 370 transitions. [2022-02-15 00:45:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-15 00:45:49,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:49,441 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:49,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 00:45:49,442 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:49,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:49,442 INFO L85 PathProgramCache]: Analyzing trace with hash 471690038, now seen corresponding path program 1 times [2022-02-15 00:45:49,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:49,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212894163] [2022-02-15 00:45:49,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:49,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:49,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:49,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:49,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212894163] [2022-02-15 00:45:49,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212894163] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:49,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:49,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:49,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254624342] [2022-02-15 00:45:49,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:49,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:49,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:49,553 INFO L87 Difference]: Start difference. First operand 231 states and 370 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:51,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:53,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:54,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:54,080 INFO L93 Difference]: Finished difference Result 244 states and 386 transitions. [2022-02-15 00:45:54,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:54,080 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 93 [2022-02-15 00:45:54,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:54,081 INFO L225 Difference]: With dead ends: 244 [2022-02-15 00:45:54,081 INFO L226 Difference]: Without dead ends: 244 [2022-02-15 00:45:54,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:54,082 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:54,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 00:45:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-02-15 00:45:54,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2022-02-15 00:45:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6150442477876106) internal successors, (365), 226 states have internal predecessors, (365), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 369 transitions. [2022-02-15 00:45:54,086 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 369 transitions. Word has length 93 [2022-02-15 00:45:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:54,086 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 369 transitions. [2022-02-15 00:45:54,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 369 transitions. [2022-02-15 00:45:54,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-02-15 00:45:54,087 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:54,087 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:54,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 00:45:54,087 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:54,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:54,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1910970971, now seen corresponding path program 1 times [2022-02-15 00:45:54,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:54,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660802997] [2022-02-15 00:45:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:54,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:54,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:54,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660802997] [2022-02-15 00:45:54,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660802997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:54,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:54,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:54,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884433673] [2022-02-15 00:45:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:54,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:54,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:54,189 INFO L87 Difference]: Start difference. First operand 231 states and 369 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:55,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:57,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:45:59,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:45:59,667 INFO L93 Difference]: Finished difference Result 307 states and 471 transitions. [2022-02-15 00:45:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:45:59,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-02-15 00:45:59,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:45:59,669 INFO L225 Difference]: With dead ends: 307 [2022-02-15 00:45:59,669 INFO L226 Difference]: Without dead ends: 307 [2022-02-15 00:45:59,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:45:59,669 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 141 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:45:59,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:45:59,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-02-15 00:45:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-02-15 00:45:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.6017699115044248) internal successors, (362), 226 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 366 transitions. [2022-02-15 00:45:59,674 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 366 transitions. Word has length 94 [2022-02-15 00:45:59,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:45:59,674 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 366 transitions. [2022-02-15 00:45:59,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:45:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 366 transitions. [2022-02-15 00:45:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-15 00:45:59,675 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:45:59,675 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:45:59,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 00:45:59,679 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:45:59,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:45:59,680 INFO L85 PathProgramCache]: Analyzing trace with hash -157861543, now seen corresponding path program 1 times [2022-02-15 00:45:59,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:45:59,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731882723] [2022-02-15 00:45:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:45:59,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:45:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:45:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:45:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:45:59,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:45:59,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731882723] [2022-02-15 00:45:59,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731882723] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:45:59,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:45:59,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:45:59,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291225911] [2022-02-15 00:45:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:45:59,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:45:59,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:45:59,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:45:59,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:45:59,765 INFO L87 Difference]: Start difference. First operand 231 states and 366 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:02,250 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 [] [2022-02-15 00:46:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:03,434 INFO L93 Difference]: Finished difference Result 307 states and 468 transitions. [2022-02-15 00:46:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-02-15 00:46:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:03,435 INFO L225 Difference]: With dead ends: 307 [2022-02-15 00:46:03,435 INFO L226 Difference]: Without dead ends: 307 [2022-02-15 00:46:03,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:03,436 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 139 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:03,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 350 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 00:46:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-02-15 00:46:03,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 231. [2022-02-15 00:46:03,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5884955752212389) internal successors, (359), 226 states have internal predecessors, (359), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:03,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 363 transitions. [2022-02-15 00:46:03,440 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 363 transitions. Word has length 95 [2022-02-15 00:46:03,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:03,440 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 363 transitions. [2022-02-15 00:46:03,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 363 transitions. [2022-02-15 00:46:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-02-15 00:46:03,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:03,441 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:03,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 00:46:03,441 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:03,441 INFO L85 PathProgramCache]: Analyzing trace with hash -774763640, now seen corresponding path program 1 times [2022-02-15 00:46:03,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:03,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425749055] [2022-02-15 00:46:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:03,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:03,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:03,519 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 00:46:03,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:03,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425749055] [2022-02-15 00:46:03,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425749055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:03,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:03,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:03,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575461573] [2022-02-15 00:46:03,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:03,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:03,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:03,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:03,521 INFO L87 Difference]: Start difference. First operand 231 states and 363 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:06,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:07,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:07,398 INFO L93 Difference]: Finished difference Result 383 states and 602 transitions. [2022-02-15 00:46:07,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:07,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-02-15 00:46:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:07,399 INFO L225 Difference]: With dead ends: 383 [2022-02-15 00:46:07,399 INFO L226 Difference]: Without dead ends: 383 [2022-02-15 00:46:07,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:07,400 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:07,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 342 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:46:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-02-15 00:46:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 295. [2022-02-15 00:46:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 290 states have (on average 1.6172413793103448) internal successors, (469), 290 states have internal predecessors, (469), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:07,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 473 transitions. [2022-02-15 00:46:07,405 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 473 transitions. Word has length 95 [2022-02-15 00:46:07,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:07,405 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 473 transitions. [2022-02-15 00:46:07,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 473 transitions. [2022-02-15 00:46:07,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-02-15 00:46:07,406 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:07,406 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, 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] [2022-02-15 00:46:07,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 00:46:07,406 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:07,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:07,406 INFO L85 PathProgramCache]: Analyzing trace with hash -390530396, now seen corresponding path program 1 times [2022-02-15 00:46:07,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:07,407 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858191016] [2022-02-15 00:46:07,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:07,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-15 00:46:07,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:07,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858191016] [2022-02-15 00:46:07,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858191016] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:07,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:07,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:07,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535201248] [2022-02-15 00:46:07,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:07,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:07,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:07,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:07,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:07,498 INFO L87 Difference]: Start difference. First operand 295 states and 473 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:09,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:11,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:13,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:13,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:13,872 INFO L93 Difference]: Finished difference Result 338 states and 535 transitions. [2022-02-15 00:46:13,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:13,872 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 100 [2022-02-15 00:46:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:13,873 INFO L225 Difference]: With dead ends: 338 [2022-02-15 00:46:13,874 INFO L226 Difference]: Without dead ends: 338 [2022-02-15 00:46:13,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:13,874 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 31 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:13,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 491 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 00:46:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-02-15 00:46:13,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-02-15 00:46:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6153846153846154) internal successors, (504), 312 states have internal predecessors, (504), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 508 transitions. [2022-02-15 00:46:13,879 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 508 transitions. Word has length 100 [2022-02-15 00:46:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:13,879 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 508 transitions. [2022-02-15 00:46:13,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 508 transitions. [2022-02-15 00:46:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-02-15 00:46:13,880 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:13,880 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:13,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 00:46:13,880 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:13,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1693682037, now seen corresponding path program 1 times [2022-02-15 00:46:13,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:13,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914168187] [2022-02-15 00:46:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:13,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:13,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:46:13,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:13,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914168187] [2022-02-15 00:46:13,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914168187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:13,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:13,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:13,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456758081] [2022-02-15 00:46:13,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:13,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:13,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:13,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:13,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:13,976 INFO L87 Difference]: Start difference. First operand 317 states and 508 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:17,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:17,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:17,743 INFO L93 Difference]: Finished difference Result 338 states and 534 transitions. [2022-02-15 00:46:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:17,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-02-15 00:46:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:17,745 INFO L225 Difference]: With dead ends: 338 [2022-02-15 00:46:17,745 INFO L226 Difference]: Without dead ends: 338 [2022-02-15 00:46:17,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:17,746 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:17,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 491 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:46:17,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-02-15 00:46:17,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 317. [2022-02-15 00:46:17,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.6121794871794872) internal successors, (503), 312 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:17,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 507 transitions. [2022-02-15 00:46:17,750 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 507 transitions. Word has length 108 [2022-02-15 00:46:17,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:17,750 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 507 transitions. [2022-02-15 00:46:17,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:17,750 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 507 transitions. [2022-02-15 00:46:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 00:46:17,751 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:17,751 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:17,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 00:46:17,751 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 478118402, now seen corresponding path program 1 times [2022-02-15 00:46:17,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:17,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827926498] [2022-02-15 00:46:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:17,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-15 00:46:17,842 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:17,842 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827926498] [2022-02-15 00:46:17,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827926498] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:17,842 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:17,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:17,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324034518] [2022-02-15 00:46:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:17,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:17,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:17,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:17,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:17,843 INFO L87 Difference]: Start difference. First operand 317 states and 507 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:20,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:22,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:22,986 INFO L93 Difference]: Finished difference Result 336 states and 531 transitions. [2022-02-15 00:46:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:22,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-02-15 00:46:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:22,987 INFO L225 Difference]: With dead ends: 336 [2022-02-15 00:46:22,987 INFO L226 Difference]: Without dead ends: 336 [2022-02-15 00:46:22,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:22,988 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 34 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:22,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 495 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:46:22,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2022-02-15 00:46:22,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 317. [2022-02-15 00:46:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 312 states have (on average 1.608974358974359) internal successors, (502), 312 states have internal predecessors, (502), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 506 transitions. [2022-02-15 00:46:22,992 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 506 transitions. Word has length 109 [2022-02-15 00:46:22,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:22,992 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 506 transitions. [2022-02-15 00:46:22,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 506 transitions. [2022-02-15 00:46:22,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 00:46:22,993 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:22,993 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:22,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 00:46:22,993 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:22,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:22,994 INFO L85 PathProgramCache]: Analyzing trace with hash -733726518, now seen corresponding path program 1 times [2022-02-15 00:46:22,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:22,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787653525] [2022-02-15 00:46:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:22,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-15 00:46:23,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:23,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787653525] [2022-02-15 00:46:23,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787653525] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:23,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:23,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:23,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128332259] [2022-02-15 00:46:23,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:23,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:23,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:23,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:23,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:23,078 INFO L87 Difference]: Start difference. First operand 317 states and 506 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:24,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:27,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:28,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:28,044 INFO L93 Difference]: Finished difference Result 346 states and 545 transitions. [2022-02-15 00:46:28,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:28,045 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 114 [2022-02-15 00:46:28,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:28,046 INFO L225 Difference]: With dead ends: 346 [2022-02-15 00:46:28,046 INFO L226 Difference]: Without dead ends: 346 [2022-02-15 00:46:28,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:28,047 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 19 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:28,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 556 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:46:28,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-02-15 00:46:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 333. [2022-02-15 00:46:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.600609756097561) internal successors, (525), 328 states have internal predecessors, (525), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 529 transitions. [2022-02-15 00:46:28,051 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 529 transitions. Word has length 114 [2022-02-15 00:46:28,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:28,051 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 529 transitions. [2022-02-15 00:46:28,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 529 transitions. [2022-02-15 00:46:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 00:46:28,056 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:28,056 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:28,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 00:46:28,056 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -935680694, now seen corresponding path program 1 times [2022-02-15 00:46:28,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:28,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592128641] [2022-02-15 00:46:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:28,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:28,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-15 00:46:28,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:28,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592128641] [2022-02-15 00:46:28,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592128641] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:28,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:28,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:28,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281316130] [2022-02-15 00:46:28,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:28,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:28,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:28,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:28,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:28,161 INFO L87 Difference]: Start difference. First operand 333 states and 529 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:29,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:31,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:32,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:33,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:34,250 INFO L93 Difference]: Finished difference Result 408 states and 628 transitions. [2022-02-15 00:46:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:34,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-15 00:46:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:34,251 INFO L225 Difference]: With dead ends: 408 [2022-02-15 00:46:34,251 INFO L226 Difference]: Without dead ends: 408 [2022-02-15 00:46:34,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:34,252 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 136 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:34,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 332 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:46:34,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-02-15 00:46:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 333. [2022-02-15 00:46:34,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 328 states have (on average 1.5853658536585367) internal successors, (520), 328 states have internal predecessors, (520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 524 transitions. [2022-02-15 00:46:34,257 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 524 transitions. Word has length 114 [2022-02-15 00:46:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:34,257 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 524 transitions. [2022-02-15 00:46:34,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:34,257 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 524 transitions. [2022-02-15 00:46:34,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-02-15 00:46:34,258 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:34,258 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:34,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 00:46:34,258 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:34,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash 830257820, now seen corresponding path program 1 times [2022-02-15 00:46:34,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:34,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817626364] [2022-02-15 00:46:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:34,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-02-15 00:46:34,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:34,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817626364] [2022-02-15 00:46:34,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817626364] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:34,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:34,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 00:46:34,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773583305] [2022-02-15 00:46:34,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:34,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 00:46:34,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:34,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 00:46:34,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:34,348 INFO L87 Difference]: Start difference. First operand 333 states and 524 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:36,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:39,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:41,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:41,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:41,835 INFO L93 Difference]: Finished difference Result 342 states and 535 transitions. [2022-02-15 00:46:41,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 00:46:41,836 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 115 [2022-02-15 00:46:41,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:41,837 INFO L225 Difference]: With dead ends: 342 [2022-02-15 00:46:41,837 INFO L226 Difference]: Without dead ends: 342 [2022-02-15 00:46:41,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:46:41,837 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:41,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-02-15 00:46:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-02-15 00:46:41,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-02-15 00:46:41,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.57566765578635) internal successors, (531), 337 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 535 transitions. [2022-02-15 00:46:41,842 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 535 transitions. Word has length 115 [2022-02-15 00:46:41,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:41,842 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 535 transitions. [2022-02-15 00:46:41,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:41,842 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 535 transitions. [2022-02-15 00:46:41,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-02-15 00:46:41,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:41,843 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:41,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 00:46:41,843 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1810119759, now seen corresponding path program 1 times [2022-02-15 00:46:41,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:41,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108424635] [2022-02-15 00:46:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:41,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:41,941 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-15 00:46:41,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:41,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108424635] [2022-02-15 00:46:41,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108424635] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:41,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:41,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:41,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073397870] [2022-02-15 00:46:41,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:41,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:41,943 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:41,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:41,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:41,943 INFO L87 Difference]: Start difference. First operand 342 states and 535 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:45,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:45,713 INFO L93 Difference]: Finished difference Result 359 states and 556 transitions. [2022-02-15 00:46:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:45,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 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 116 [2022-02-15 00:46:45,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:45,715 INFO L225 Difference]: With dead ends: 359 [2022-02-15 00:46:45,715 INFO L226 Difference]: Without dead ends: 359 [2022-02-15 00:46:45,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:45,716 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 35 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:45,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:46:45,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2022-02-15 00:46:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 342. [2022-02-15 00:46:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.572700296735905) internal successors, (530), 337 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:45,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 534 transitions. [2022-02-15 00:46:45,720 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 534 transitions. Word has length 116 [2022-02-15 00:46:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:45,720 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 534 transitions. [2022-02-15 00:46:45,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:45,720 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 534 transitions. [2022-02-15 00:46:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 00:46:45,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:45,721 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:46:45,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 00:46:45,721 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:45,722 INFO L85 PathProgramCache]: Analyzing trace with hash 713638299, now seen corresponding path program 1 times [2022-02-15 00:46:45,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:45,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381749205] [2022-02-15 00:46:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:45,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:45,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-02-15 00:46:45,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:45,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381749205] [2022-02-15 00:46:45,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381749205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:45,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:45,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:45,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001826294] [2022-02-15 00:46:45,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:45,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:45,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:45,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:45,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:45,812 INFO L87 Difference]: Start difference. First operand 342 states and 534 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:47,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:49,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:51,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:51,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:51,614 INFO L93 Difference]: Finished difference Result 349 states and 543 transitions. [2022-02-15 00:46:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:51,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-02-15 00:46:51,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:51,615 INFO L225 Difference]: With dead ends: 349 [2022-02-15 00:46:51,615 INFO L226 Difference]: Without dead ends: 349 [2022-02-15 00:46:51,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:51,616 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 30 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:51,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 513 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 00:46:51,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-02-15 00:46:51,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 342. [2022-02-15 00:46:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.5697329376854599) internal successors, (529), 337 states have internal predecessors, (529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 533 transitions. [2022-02-15 00:46:51,620 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 533 transitions. Word has length 122 [2022-02-15 00:46:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:51,620 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 533 transitions. [2022-02-15 00:46:51,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 533 transitions. [2022-02-15 00:46:51,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 00:46:51,621 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:51,621 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] [2022-02-15 00:46:51,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 00:46:51,621 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:51,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1104389438, now seen corresponding path program 1 times [2022-02-15 00:46:51,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:51,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878361001] [2022-02-15 00:46:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:51,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-15 00:46:51,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:51,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878361001] [2022-02-15 00:46:51,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878361001] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:51,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:51,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:46:51,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751517006] [2022-02-15 00:46:51,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:51,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:46:51,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:51,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:46:51,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:51,705 INFO L87 Difference]: Start difference. First operand 342 states and 533 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:53,873 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 [] [2022-02-15 00:46:54,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:54,657 INFO L93 Difference]: Finished difference Result 369 states and 568 transitions. [2022-02-15 00:46:54,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:46:54,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-02-15 00:46:54,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:54,659 INFO L225 Difference]: With dead ends: 369 [2022-02-15 00:46:54,659 INFO L226 Difference]: Without dead ends: 369 [2022-02-15 00:46:54,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:46:54,659 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:54,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 413 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-02-15 00:46:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-02-15 00:46:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2022-02-15 00:46:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 364 states have (on average 1.5494505494505495) internal successors, (564), 364 states have internal predecessors, (564), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 568 transitions. [2022-02-15 00:46:54,664 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 568 transitions. Word has length 122 [2022-02-15 00:46:54,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:54,664 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 568 transitions. [2022-02-15 00:46:54,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:54,664 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 568 transitions. [2022-02-15 00:46:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-02-15 00:46:54,665 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:54,665 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] [2022-02-15 00:46:54,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 00:46:54,665 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:54,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-02-15 00:46:54,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:54,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124465278] [2022-02-15 00:46:54,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:54,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:46:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:46:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:46:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:46:54,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:46:54,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124465278] [2022-02-15 00:46:54,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124465278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:46:54,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:46:54,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:46:54,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671656826] [2022-02-15 00:46:54,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:46:54,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:46:54,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:46:54,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:46:54,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:46:54,755 INFO L87 Difference]: Start difference. First operand 369 states and 568 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:57,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:59,554 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:46:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:46:59,978 INFO L93 Difference]: Finished difference Result 494 states and 750 transitions. [2022-02-15 00:46:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:46:59,978 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 122 [2022-02-15 00:46:59,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:46:59,980 INFO L225 Difference]: With dead ends: 494 [2022-02-15 00:46:59,980 INFO L226 Difference]: Without dead ends: 494 [2022-02-15 00:46:59,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:46:59,980 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 116 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:46:59,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 332 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:46:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-02-15 00:46:59,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 406. [2022-02-15 00:46:59,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5610972568578554) internal successors, (626), 401 states have internal predecessors, (626), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 630 transitions. [2022-02-15 00:46:59,987 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 630 transitions. Word has length 122 [2022-02-15 00:46:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:46:59,987 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 630 transitions. [2022-02-15 00:46:59,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:46:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 630 transitions. [2022-02-15 00:46:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-02-15 00:46:59,988 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:46:59,988 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] [2022-02-15 00:46:59,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 00:46:59,988 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:46:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:46:59,989 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-02-15 00:46:59,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:46:59,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525538998] [2022-02-15 00:46:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:46:59,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:47:00,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:00,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525538998] [2022-02-15 00:47:00,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525538998] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:00,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:00,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:00,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974470008] [2022-02-15 00:47:00,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:00,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:00,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:00,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:00,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:00,081 INFO L87 Difference]: Start difference. First operand 406 states and 630 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:01,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:03,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:04,352 INFO L93 Difference]: Finished difference Result 491 states and 744 transitions. [2022-02-15 00:47:04,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:04,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-02-15 00:47:04,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:04,354 INFO L225 Difference]: With dead ends: 491 [2022-02-15 00:47:04,354 INFO L226 Difference]: Without dead ends: 491 [2022-02-15 00:47:04,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:04,354 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 115 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:04,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 352 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:47:04,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-02-15 00:47:04,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-02-15 00:47:04,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5561097256857854) internal successors, (624), 401 states have internal predecessors, (624), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:04,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 628 transitions. [2022-02-15 00:47:04,359 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 628 transitions. Word has length 123 [2022-02-15 00:47:04,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:04,360 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 628 transitions. [2022-02-15 00:47:04,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 628 transitions. [2022-02-15 00:47:04,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-02-15 00:47:04,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:04,360 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:04,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 00:47:04,361 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:04,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:04,361 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-02-15 00:47:04,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:04,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363299102] [2022-02-15 00:47:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:47:04,445 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:04,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363299102] [2022-02-15 00:47:04,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363299102] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:04,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:04,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:04,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400967906] [2022-02-15 00:47:04,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:04,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:04,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:04,447 INFO L87 Difference]: Start difference. First operand 406 states and 628 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:06,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:08,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:09,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:09,361 INFO L93 Difference]: Finished difference Result 491 states and 739 transitions. [2022-02-15 00:47:09,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:09,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-02-15 00:47:09,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:09,363 INFO L225 Difference]: With dead ends: 491 [2022-02-15 00:47:09,363 INFO L226 Difference]: Without dead ends: 491 [2022-02-15 00:47:09,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:09,363 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 136 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:09,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:47:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-02-15 00:47:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 406. [2022-02-15 00:47:09,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 401 states have (on average 1.5436408977556109) internal successors, (619), 401 states have internal predecessors, (619), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 623 transitions. [2022-02-15 00:47:09,369 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 623 transitions. Word has length 130 [2022-02-15 00:47:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:09,369 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 623 transitions. [2022-02-15 00:47:09,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 623 transitions. [2022-02-15 00:47:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 00:47:09,370 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:09,370 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-02-15 00:47:09,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 00:47:09,370 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:09,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:09,370 INFO L85 PathProgramCache]: Analyzing trace with hash 730265123, now seen corresponding path program 1 times [2022-02-15 00:47:09,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:09,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178014010] [2022-02-15 00:47:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:09,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:47:09,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:09,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178014010] [2022-02-15 00:47:09,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178014010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:09,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:09,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:09,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403911666] [2022-02-15 00:47:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:09,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:09,482 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:09,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:09,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:09,483 INFO L87 Difference]: Start difference. First operand 406 states and 623 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:10,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:12,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:14,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:16,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:16,119 INFO L93 Difference]: Finished difference Result 507 states and 769 transitions. [2022-02-15 00:47:16,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:16,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 00:47:16,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:16,121 INFO L225 Difference]: With dead ends: 507 [2022-02-15 00:47:16,121 INFO L226 Difference]: Without dead ends: 507 [2022-02-15 00:47:16,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:16,121 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 96 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:16,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 461 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 500 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 00:47:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-02-15 00:47:16,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 425. [2022-02-15 00:47:16,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 420 states have (on average 1.5357142857142858) internal successors, (645), 420 states have internal predecessors, (645), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 649 transitions. [2022-02-15 00:47:16,126 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 649 transitions. Word has length 131 [2022-02-15 00:47:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:16,127 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 649 transitions. [2022-02-15 00:47:16,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 649 transitions. [2022-02-15 00:47:16,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 00:47:16,128 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:16,128 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:16,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 00:47:16,128 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:16,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:16,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-02-15 00:47:16,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:16,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935910728] [2022-02-15 00:47:16,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:16,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:47:16,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:16,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935910728] [2022-02-15 00:47:16,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935910728] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:16,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:16,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:16,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36997467] [2022-02-15 00:47:16,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:16,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:16,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:16,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:16,222 INFO L87 Difference]: Start difference. First operand 425 states and 649 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:18,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:19,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:21,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:21,167 INFO L93 Difference]: Finished difference Result 550 states and 829 transitions. [2022-02-15 00:47:21,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:21,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 00:47:21,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:21,169 INFO L225 Difference]: With dead ends: 550 [2022-02-15 00:47:21,169 INFO L226 Difference]: Without dead ends: 550 [2022-02-15 00:47:21,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:21,169 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:21,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 353 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 00:47:21,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-02-15 00:47:21,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 468. [2022-02-15 00:47:21,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 463 states have (on average 1.5442764578833694) internal successors, (715), 463 states have internal predecessors, (715), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 719 transitions. [2022-02-15 00:47:21,177 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 719 transitions. Word has length 131 [2022-02-15 00:47:21,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:21,177 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 719 transitions. [2022-02-15 00:47:21,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 719 transitions. [2022-02-15 00:47:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-02-15 00:47:21,178 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:21,178 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-02-15 00:47:21,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 00:47:21,178 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:21,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:21,179 INFO L85 PathProgramCache]: Analyzing trace with hash -754790428, now seen corresponding path program 1 times [2022-02-15 00:47:21,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:21,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796170149] [2022-02-15 00:47:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:47:21,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:21,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796170149] [2022-02-15 00:47:21,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796170149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:21,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:21,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:21,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090486034] [2022-02-15 00:47:21,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:21,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:21,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:21,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:21,317 INFO L87 Difference]: Start difference. First operand 468 states and 719 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:24,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:25,799 INFO L93 Difference]: Finished difference Result 553 states and 829 transitions. [2022-02-15 00:47:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:25,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-02-15 00:47:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:25,801 INFO L225 Difference]: With dead ends: 553 [2022-02-15 00:47:25,801 INFO L226 Difference]: Without dead ends: 553 [2022-02-15 00:47:25,801 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 [2022-02-15 00:47:25,801 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 135 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:25,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 332 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 470 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-02-15 00:47:25,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-15 00:47:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 449. [2022-02-15 00:47:25,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 444 states have (on average 1.5382882882882882) internal successors, (683), 444 states have internal predecessors, (683), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 687 transitions. [2022-02-15 00:47:25,807 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 687 transitions. Word has length 131 [2022-02-15 00:47:25,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:25,808 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 687 transitions. [2022-02-15 00:47:25,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 687 transitions. [2022-02-15 00:47:25,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 00:47:25,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:25,809 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:25,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 00:47:25,809 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:25,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-02-15 00:47:25,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:25,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227201981] [2022-02-15 00:47:25,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:25,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:25,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:25,894 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:47:25,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:25,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227201981] [2022-02-15 00:47:25,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227201981] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:25,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:25,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:25,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166222174] [2022-02-15 00:47:25,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:25,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:25,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:25,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:25,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:25,895 INFO L87 Difference]: Start difference. First operand 449 states and 687 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:28,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:29,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:30,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:31,154 INFO L93 Difference]: Finished difference Result 543 states and 821 transitions. [2022-02-15 00:47:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:31,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-15 00:47:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:31,156 INFO L225 Difference]: With dead ends: 543 [2022-02-15 00:47:31,156 INFO L226 Difference]: Without dead ends: 543 [2022-02-15 00:47:31,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:31,157 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 61 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:31,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 469 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:47:31,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-02-15 00:47:31,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 492. [2022-02-15 00:47:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 487 states have (on average 1.540041067761807) internal successors, (750), 487 states have internal predecessors, (750), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:31,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 754 transitions. [2022-02-15 00:47:31,162 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 754 transitions. Word has length 132 [2022-02-15 00:47:31,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:31,162 INFO L470 AbstractCegarLoop]: Abstraction has 492 states and 754 transitions. [2022-02-15 00:47:31,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:31,163 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 754 transitions. [2022-02-15 00:47:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 00:47:31,164 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:31,164 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:31,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 00:47:31,164 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:31,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:31,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1387919047, now seen corresponding path program 1 times [2022-02-15 00:47:31,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:31,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532201109] [2022-02-15 00:47:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:31,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:31,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-15 00:47:31,270 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:31,270 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532201109] [2022-02-15 00:47:31,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532201109] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:31,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:31,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:31,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727496742] [2022-02-15 00:47:31,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:31,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:31,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:31,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:31,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:31,272 INFO L87 Difference]: Start difference. First operand 492 states and 754 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:32,313 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 [] [2022-02-15 00:47:34,328 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:36,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:37,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:37,507 INFO L93 Difference]: Finished difference Result 577 states and 869 transitions. [2022-02-15 00:47:37,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:37,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-02-15 00:47:37,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:37,509 INFO L225 Difference]: With dead ends: 577 [2022-02-15 00:47:37,509 INFO L226 Difference]: Without dead ends: 575 [2022-02-15 00:47:37,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:37,510 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 108 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:37,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 479 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:47:37,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-02-15 00:47:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 494. [2022-02-15 00:47:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.539877300613497) internal successors, (753), 489 states have internal predecessors, (753), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 757 transitions. [2022-02-15 00:47:37,516 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 757 transitions. Word has length 132 [2022-02-15 00:47:37,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:37,516 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 757 transitions. [2022-02-15 00:47:37,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 757 transitions. [2022-02-15 00:47:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-15 00:47:37,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:37,517 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:37,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 00:47:37,517 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:37,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-02-15 00:47:37,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:37,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589740202] [2022-02-15 00:47:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:37,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 00:47:37,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:37,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589740202] [2022-02-15 00:47:37,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589740202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:37,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:37,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:37,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579883772] [2022-02-15 00:47:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:37,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:37,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:37,605 INFO L87 Difference]: Start difference. First operand 494 states and 757 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:40,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:42,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:43,166 INFO L93 Difference]: Finished difference Result 535 states and 811 transitions. [2022-02-15 00:47:43,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:43,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-15 00:47:43,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:43,167 INFO L225 Difference]: With dead ends: 535 [2022-02-15 00:47:43,167 INFO L226 Difference]: Without dead ends: 535 [2022-02-15 00:47:43,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:43,168 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 90 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:43,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 493 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 502 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-02-15 00:47:43,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-02-15 00:47:43,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 494. [2022-02-15 00:47:43,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 489 states have (on average 1.5378323108384457) internal successors, (752), 489 states have internal predecessors, (752), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 756 transitions. [2022-02-15 00:47:43,173 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 756 transitions. Word has length 144 [2022-02-15 00:47:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:43,173 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 756 transitions. [2022-02-15 00:47:43,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 756 transitions. [2022-02-15 00:47:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-15 00:47:43,174 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:43,174 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:43,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 00:47:43,174 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:43,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:43,175 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-02-15 00:47:43,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:43,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192946203] [2022-02-15 00:47:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:43,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:47:43,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:43,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192946203] [2022-02-15 00:47:43,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192946203] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:43,258 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:43,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:43,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443543140] [2022-02-15 00:47:43,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:43,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:43,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:43,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:43,259 INFO L87 Difference]: Start difference. First operand 494 states and 756 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:44,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:45,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:46,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:48,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:48,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:48,473 INFO L93 Difference]: Finished difference Result 617 states and 925 transitions. [2022-02-15 00:47:48,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:48,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-15 00:47:48,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:48,475 INFO L225 Difference]: With dead ends: 617 [2022-02-15 00:47:48,475 INFO L226 Difference]: Without dead ends: 617 [2022-02-15 00:47:48,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:48,476 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 119 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:48,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 354 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:47:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-02-15 00:47:48,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 524. [2022-02-15 00:47:48,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 519 states have (on average 1.5298651252408477) internal successors, (794), 519 states have internal predecessors, (794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:48,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 798 transitions. [2022-02-15 00:47:48,481 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 798 transitions. Word has length 144 [2022-02-15 00:47:48,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:48,481 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 798 transitions. [2022-02-15 00:47:48,481 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) [2022-02-15 00:47:48,482 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 798 transitions. [2022-02-15 00:47:48,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-02-15 00:47:48,482 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:48,483 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:48,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 00:47:48,484 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:48,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:48,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-02-15 00:47:48,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:48,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640044961] [2022-02-15 00:47:48,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:48,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 00:47:48,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:48,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640044961] [2022-02-15 00:47:48,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640044961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:48,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:48,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:48,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546670342] [2022-02-15 00:47:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:48,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:48,573 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:48,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:48,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:48,573 INFO L87 Difference]: Start difference. First operand 524 states and 798 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:51,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:52,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:52,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:52,954 INFO L93 Difference]: Finished difference Result 607 states and 918 transitions. [2022-02-15 00:47:52,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:52,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-02-15 00:47:52,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:52,956 INFO L225 Difference]: With dead ends: 607 [2022-02-15 00:47:52,956 INFO L226 Difference]: Without dead ends: 607 [2022-02-15 00:47:52,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:52,956 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 91 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:52,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 625 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 00:47:52,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-02-15 00:47:52,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 535. [2022-02-15 00:47:52,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.528301886792453) internal successors, (810), 530 states have internal predecessors, (810), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 814 transitions. [2022-02-15 00:47:52,961 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 814 transitions. Word has length 144 [2022-02-15 00:47:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:52,962 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 814 transitions. [2022-02-15 00:47:52,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:52,962 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 814 transitions. [2022-02-15 00:47:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 00:47:52,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:52,963 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:52,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 00:47:52,963 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:52,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:52,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1870256407, now seen corresponding path program 1 times [2022-02-15 00:47:52,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:52,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223650767] [2022-02-15 00:47:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:52,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:53,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 00:47:53,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:53,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223650767] [2022-02-15 00:47:53,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223650767] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:53,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:53,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:53,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164259862] [2022-02-15 00:47:53,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:53,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:53,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:53,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:53,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:53,070 INFO L87 Difference]: Start difference. First operand 535 states and 814 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:54,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:56,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:58,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:47:58,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:47:58,532 INFO L93 Difference]: Finished difference Result 606 states and 901 transitions. [2022-02-15 00:47:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:47:58,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 00:47:58,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:47:58,534 INFO L225 Difference]: With dead ends: 606 [2022-02-15 00:47:58,534 INFO L226 Difference]: Without dead ends: 606 [2022-02-15 00:47:58,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:47:58,534 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 135 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:47:58,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 356 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:47:58,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-02-15 00:47:58,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 535. [2022-02-15 00:47:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.5113207547169811) internal successors, (801), 530 states have internal predecessors, (801), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 805 transitions. [2022-02-15 00:47:58,539 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 805 transitions. Word has length 145 [2022-02-15 00:47:58,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:47:58,540 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 805 transitions. [2022-02-15 00:47:58,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:47:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 805 transitions. [2022-02-15 00:47:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 00:47:58,541 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:47:58,541 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:47:58,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 00:47:58,541 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:47:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:47:58,541 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-02-15 00:47:58,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:47:58,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094269068] [2022-02-15 00:47:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:47:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:47:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:58,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:47:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:47:58,644 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:47:58,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:47:58,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094269068] [2022-02-15 00:47:58,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094269068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:47:58,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:47:58,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:47:58,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829396599] [2022-02-15 00:47:58,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:47:58,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:47:58,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:47:58,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:47:58,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:47:58,645 INFO L87 Difference]: Start difference. First operand 535 states and 805 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:01,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:03,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:04,050 INFO L93 Difference]: Finished difference Result 564 states and 844 transitions. [2022-02-15 00:48:04,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:04,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 00:48:04,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:04,052 INFO L225 Difference]: With dead ends: 564 [2022-02-15 00:48:04,052 INFO L226 Difference]: Without dead ends: 564 [2022-02-15 00:48:04,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:04,052 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 59 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:04,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 489 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:48:04,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-02-15 00:48:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 535. [2022-02-15 00:48:04,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 530 states have (on average 1.509433962264151) internal successors, (800), 530 states have internal predecessors, (800), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 804 transitions. [2022-02-15 00:48:04,057 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 804 transitions. Word has length 145 [2022-02-15 00:48:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:04,057 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 804 transitions. [2022-02-15 00:48:04,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 804 transitions. [2022-02-15 00:48:04,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-02-15 00:48:04,058 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:04,059 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:04,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 00:48:04,059 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 410348179, now seen corresponding path program 1 times [2022-02-15 00:48:04,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:04,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243927271] [2022-02-15 00:48:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:04,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-02-15 00:48:04,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:04,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243927271] [2022-02-15 00:48:04,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243927271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:04,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:04,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:04,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350865074] [2022-02-15 00:48:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:04,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:04,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:04,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:04,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:04,163 INFO L87 Difference]: Start difference. First operand 535 states and 804 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:05,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:07,882 INFO L93 Difference]: Finished difference Result 560 states and 838 transitions. [2022-02-15 00:48:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-02-15 00:48:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:07,884 INFO L225 Difference]: With dead ends: 560 [2022-02-15 00:48:07,884 INFO L226 Difference]: Without dead ends: 560 [2022-02-15 00:48:07,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:07,884 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 25 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:07,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 571 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 00:48:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-02-15 00:48:07,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 548. [2022-02-15 00:48:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.5064456721915285) internal successors, (818), 543 states have internal predecessors, (818), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 822 transitions. [2022-02-15 00:48:07,889 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 822 transitions. Word has length 145 [2022-02-15 00:48:07,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:07,889 INFO L470 AbstractCegarLoop]: Abstraction has 548 states and 822 transitions. [2022-02-15 00:48:07,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 822 transitions. [2022-02-15 00:48:07,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-15 00:48:07,890 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:07,890 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] [2022-02-15 00:48:07,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 00:48:07,891 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:07,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:07,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1815015926, now seen corresponding path program 1 times [2022-02-15 00:48:07,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:07,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166424417] [2022-02-15 00:48:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:07,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:48:08,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:08,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166424417] [2022-02-15 00:48:08,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166424417] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:08,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:08,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:08,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302764449] [2022-02-15 00:48:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:08,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:08,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:08,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:08,002 INFO L87 Difference]: Start difference. First operand 548 states and 822 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:09,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:12,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:12,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:12,806 INFO L93 Difference]: Finished difference Result 661 states and 975 transitions. [2022-02-15 00:48:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-02-15 00:48:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:12,808 INFO L225 Difference]: With dead ends: 661 [2022-02-15 00:48:12,808 INFO L226 Difference]: Without dead ends: 661 [2022-02-15 00:48:12,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:12,809 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 119 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:12,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 356 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:48:12,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-02-15 00:48:12,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 576. [2022-02-15 00:48:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4956217162872154) internal successors, (854), 571 states have internal predecessors, (854), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:12,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 858 transitions. [2022-02-15 00:48:12,814 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 858 transitions. Word has length 147 [2022-02-15 00:48:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:12,814 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 858 transitions. [2022-02-15 00:48:12,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 858 transitions. [2022-02-15 00:48:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-02-15 00:48:12,816 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:12,816 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] [2022-02-15 00:48:12,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 00:48:12,816 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:12,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:12,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1959841828, now seen corresponding path program 1 times [2022-02-15 00:48:12,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:12,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353885231] [2022-02-15 00:48:12,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:12,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-15 00:48:12,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:12,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353885231] [2022-02-15 00:48:12,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353885231] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:12,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:12,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:12,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747288963] [2022-02-15 00:48:12,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:12,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:12,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:12,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:12,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:12,909 INFO L87 Difference]: Start difference. First operand 576 states and 858 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:16,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:16,531 INFO L93 Difference]: Finished difference Result 647 states and 946 transitions. [2022-02-15 00:48:16,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:16,532 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-02-15 00:48:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:16,533 INFO L225 Difference]: With dead ends: 647 [2022-02-15 00:48:16,533 INFO L226 Difference]: Without dead ends: 647 [2022-02-15 00:48:16,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:16,534 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 118 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:16,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 336 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 00:48:16,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-02-15 00:48:16,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-02-15 00:48:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4816112084063047) internal successors, (846), 571 states have internal predecessors, (846), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:16,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 850 transitions. [2022-02-15 00:48:16,539 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 850 transitions. Word has length 148 [2022-02-15 00:48:16,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:16,539 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 850 transitions. [2022-02-15 00:48:16,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 850 transitions. [2022-02-15 00:48:16,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-02-15 00:48:16,540 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:16,540 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] [2022-02-15 00:48:16,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 00:48:16,540 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:16,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:16,540 INFO L85 PathProgramCache]: Analyzing trace with hash 180398438, now seen corresponding path program 1 times [2022-02-15 00:48:16,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:16,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217978279] [2022-02-15 00:48:16,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:16,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-15 00:48:16,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:16,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217978279] [2022-02-15 00:48:16,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217978279] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:16,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:16,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:16,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118278986] [2022-02-15 00:48:16,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:16,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:16,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:16,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:16,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:16,633 INFO L87 Difference]: Start difference. First operand 576 states and 850 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:17,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:19,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:21,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:22,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:22,651 INFO L93 Difference]: Finished difference Result 597 states and 876 transitions. [2022-02-15 00:48:22,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:22,652 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 154 [2022-02-15 00:48:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:22,654 INFO L225 Difference]: With dead ends: 597 [2022-02-15 00:48:22,654 INFO L226 Difference]: Without dead ends: 597 [2022-02-15 00:48:22,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:22,654 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 43 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:22,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 507 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-02-15 00:48:22,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-02-15 00:48:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 576. [2022-02-15 00:48:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.479859894921191) internal successors, (845), 571 states have internal predecessors, (845), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 849 transitions. [2022-02-15 00:48:22,659 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 849 transitions. Word has length 154 [2022-02-15 00:48:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:22,660 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 849 transitions. [2022-02-15 00:48:22,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 849 transitions. [2022-02-15 00:48:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-02-15 00:48:22,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:22,661 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] [2022-02-15 00:48:22,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 00:48:22,661 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:22,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash -792787074, now seen corresponding path program 1 times [2022-02-15 00:48:22,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:22,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619477298] [2022-02-15 00:48:22,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:22,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:22,758 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-02-15 00:48:22,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:22,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619477298] [2022-02-15 00:48:22,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619477298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:22,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:22,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:22,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413074958] [2022-02-15 00:48:22,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:22,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:22,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:22,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:22,759 INFO L87 Difference]: Start difference. First operand 576 states and 849 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:24,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:25,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:28,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:28,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:28,622 INFO L93 Difference]: Finished difference Result 595 states and 873 transitions. [2022-02-15 00:48:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:28,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-02-15 00:48:28,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:28,625 INFO L225 Difference]: With dead ends: 595 [2022-02-15 00:48:28,625 INFO L226 Difference]: Without dead ends: 595 [2022-02-15 00:48:28,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:28,625 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 40 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:28,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 509 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-02-15 00:48:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-02-15 00:48:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 576. [2022-02-15 00:48:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.478108581436077) internal successors, (844), 571 states have internal predecessors, (844), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 848 transitions. [2022-02-15 00:48:28,630 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 848 transitions. Word has length 155 [2022-02-15 00:48:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:28,630 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 848 transitions. [2022-02-15 00:48:28,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 848 transitions. [2022-02-15 00:48:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-15 00:48:28,631 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:28,631 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:28,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 00:48:28,632 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:28,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:28,632 INFO L85 PathProgramCache]: Analyzing trace with hash -159357064, now seen corresponding path program 1 times [2022-02-15 00:48:28,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:28,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164857211] [2022-02-15 00:48:28,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:28,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-15 00:48:28,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:28,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164857211] [2022-02-15 00:48:28,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164857211] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:28,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:28,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:28,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014271449] [2022-02-15 00:48:28,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:28,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:28,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:28,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:28,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:28,730 INFO L87 Difference]: Start difference. First operand 576 states and 848 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:30,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:31,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:31,142 INFO L93 Difference]: Finished difference Result 647 states and 935 transitions. [2022-02-15 00:48:31,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:31,143 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 166 [2022-02-15 00:48:31,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:31,145 INFO L225 Difference]: With dead ends: 647 [2022-02-15 00:48:31,145 INFO L226 Difference]: Without dead ends: 647 [2022-02-15 00:48:31,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:31,145 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 122 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:31,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 480 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:48:31,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-02-15 00:48:31,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 576. [2022-02-15 00:48:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 571 states have (on average 1.4623467600700526) internal successors, (835), 571 states have internal predecessors, (835), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 839 transitions. [2022-02-15 00:48:31,150 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 839 transitions. Word has length 166 [2022-02-15 00:48:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:31,151 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 839 transitions. [2022-02-15 00:48:31,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 839 transitions. [2022-02-15 00:48:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-02-15 00:48:31,152 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:31,152 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:31,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 00:48:31,152 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1066888727, now seen corresponding path program 1 times [2022-02-15 00:48:31,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:31,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189548069] [2022-02-15 00:48:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:31,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:31,307 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-02-15 00:48:31,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:31,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189548069] [2022-02-15 00:48:31,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189548069] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:31,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:31,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:31,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064169707] [2022-02-15 00:48:31,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:31,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:31,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:31,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:31,310 INFO L87 Difference]: Start difference. First operand 576 states and 839 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:34,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:35,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:35,611 INFO L93 Difference]: Finished difference Result 641 states and 929 transitions. [2022-02-15 00:48:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:35,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 166 [2022-02-15 00:48:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:35,613 INFO L225 Difference]: With dead ends: 641 [2022-02-15 00:48:35,613 INFO L226 Difference]: Without dead ends: 641 [2022-02-15 00:48:35,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:35,613 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 71 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:35,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 583 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 00:48:35,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-02-15 00:48:35,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 587. [2022-02-15 00:48:35,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 582 states have (on average 1.4621993127147765) internal successors, (851), 582 states have internal predecessors, (851), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 855 transitions. [2022-02-15 00:48:35,618 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 855 transitions. Word has length 166 [2022-02-15 00:48:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:35,618 INFO L470 AbstractCegarLoop]: Abstraction has 587 states and 855 transitions. [2022-02-15 00:48:35,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:35,618 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 855 transitions. [2022-02-15 00:48:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-02-15 00:48:35,619 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:35,620 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:35,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 00:48:35,620 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:35,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1119849675, now seen corresponding path program 1 times [2022-02-15 00:48:35,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:35,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751316487] [2022-02-15 00:48:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:35,711 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-02-15 00:48:35,711 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:35,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751316487] [2022-02-15 00:48:35,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751316487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:35,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:35,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:35,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479422954] [2022-02-15 00:48:35,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:35,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:35,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:35,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:35,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:35,712 INFO L87 Difference]: Start difference. First operand 587 states and 855 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:38,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:40,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:40,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:40,380 INFO L93 Difference]: Finished difference Result 616 states and 895 transitions. [2022-02-15 00:48:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2022-02-15 00:48:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:40,382 INFO L225 Difference]: With dead ends: 616 [2022-02-15 00:48:40,382 INFO L226 Difference]: Without dead ends: 616 [2022-02-15 00:48:40,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:40,382 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 27 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:40,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 573 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 00:48:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2022-02-15 00:48:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 602. [2022-02-15 00:48:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4606365159128978) internal successors, (872), 597 states have internal predecessors, (872), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:40,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 876 transitions. [2022-02-15 00:48:40,388 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 876 transitions. Word has length 167 [2022-02-15 00:48:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:40,388 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 876 transitions. [2022-02-15 00:48:40,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 876 transitions. [2022-02-15 00:48:40,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-15 00:48:40,389 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:40,389 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:40,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 00:48:40,389 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:40,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:40,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1663236114, now seen corresponding path program 1 times [2022-02-15 00:48:40,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:40,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254663740] [2022-02-15 00:48:40,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:40,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:40,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-15 00:48:40,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:40,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254663740] [2022-02-15 00:48:40,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254663740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:40,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:40,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:40,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279795150] [2022-02-15 00:48:40,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:40,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:40,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:40,493 INFO L87 Difference]: Start difference. First operand 602 states and 876 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:41,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:43,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:45,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:46,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:46,599 INFO L93 Difference]: Finished difference Result 673 states and 963 transitions. [2022-02-15 00:48:46,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:46,599 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 172 [2022-02-15 00:48:46,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:46,601 INFO L225 Difference]: With dead ends: 673 [2022-02-15 00:48:46,601 INFO L226 Difference]: Without dead ends: 673 [2022-02-15 00:48:46,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:46,602 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:46,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 336 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 466 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 00:48:46,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2022-02-15 00:48:46,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 602. [2022-02-15 00:48:46,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 597 states have (on average 1.4455611390284757) internal successors, (863), 597 states have internal predecessors, (863), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 867 transitions. [2022-02-15 00:48:46,607 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 867 transitions. Word has length 172 [2022-02-15 00:48:46,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:46,607 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 867 transitions. [2022-02-15 00:48:46,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 867 transitions. [2022-02-15 00:48:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-02-15 00:48:46,608 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:46,608 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] [2022-02-15 00:48:46,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 00:48:46,609 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-02-15 00:48:46,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:46,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460557597] [2022-02-15 00:48:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:46,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-02-15 00:48:46,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:46,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460557597] [2022-02-15 00:48:46,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460557597] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:46,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:46,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:48:46,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687957127] [2022-02-15 00:48:46,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:46,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:48:46,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:46,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:48:46,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:48:46,716 INFO L87 Difference]: Start difference. First operand 602 states and 867 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:48,405 INFO L93 Difference]: Finished difference Result 1144 states and 1654 transitions. [2022-02-15 00:48:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:48:48,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 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 172 [2022-02-15 00:48:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:48,422 INFO L225 Difference]: With dead ends: 1144 [2022-02-15 00:48:48,422 INFO L226 Difference]: Without dead ends: 1144 [2022-02-15 00:48:48,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:48:48,422 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:48,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-15 00:48:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2022-02-15 00:48:48,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1144. [2022-02-15 00:48:48,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.4486391571553994) internal successors, (1650), 1139 states have internal predecessors, (1650), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1654 transitions. [2022-02-15 00:48:48,431 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1654 transitions. Word has length 172 [2022-02-15 00:48:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:48,432 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1654 transitions. [2022-02-15 00:48:48,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1654 transitions. [2022-02-15 00:48:48,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 00:48:48,433 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:48,433 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:48,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 00:48:48,434 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:48,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:48,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1289488092, now seen corresponding path program 1 times [2022-02-15 00:48:48,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:48,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23031468] [2022-02-15 00:48:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:48,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:48,569 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-15 00:48:48,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:48,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23031468] [2022-02-15 00:48:48,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23031468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:48,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:48,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:48:48,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719006205] [2022-02-15 00:48:48,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:48,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:48:48,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:48,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:48:48,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:48:48,570 INFO L87 Difference]: Start difference. First operand 1144 states and 1654 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:51,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:52,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:52,500 INFO L93 Difference]: Finished difference Result 1177 states and 1693 transitions. [2022-02-15 00:48:52,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:48:52,501 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 173 [2022-02-15 00:48:52,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:52,504 INFO L225 Difference]: With dead ends: 1177 [2022-02-15 00:48:52,504 INFO L226 Difference]: Without dead ends: 1177 [2022-02-15 00:48:52,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:48:52,504 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 45 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:52,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 525 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-02-15 00:48:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2022-02-15 00:48:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1144. [2022-02-15 00:48:52,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1139 states have (on average 1.446883230904302) internal successors, (1648), 1139 states have internal predecessors, (1648), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:52,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1652 transitions. [2022-02-15 00:48:52,514 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1652 transitions. Word has length 173 [2022-02-15 00:48:52,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:52,515 INFO L470 AbstractCegarLoop]: Abstraction has 1144 states and 1652 transitions. [2022-02-15 00:48:52,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:52,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1652 transitions. [2022-02-15 00:48:52,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 00:48:52,516 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:52,516 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] [2022-02-15 00:48:52,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 00:48:52,517 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:52,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:52,517 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-02-15 00:48:52,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:52,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64167125] [2022-02-15 00:48:52,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:52,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-15 00:48:52,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:52,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64167125] [2022-02-15 00:48:52,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64167125] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:52,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:52,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:48:52,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721743261] [2022-02-15 00:48:52,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:52,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:48:52,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:52,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:48:52,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:48:52,632 INFO L87 Difference]: Start difference. First operand 1144 states and 1652 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:55,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:48:56,412 INFO L93 Difference]: Finished difference Result 1654 states and 2391 transitions. [2022-02-15 00:48:56,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:48:56,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-02-15 00:48:56,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:48:56,417 INFO L225 Difference]: With dead ends: 1654 [2022-02-15 00:48:56,417 INFO L226 Difference]: Without dead ends: 1654 [2022-02-15 00:48:56,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:48:56,418 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:48:56,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 567 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:48:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-02-15 00:48:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1654. [2022-02-15 00:48:56,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1649 states have (on average 1.4475439660400242) internal successors, (2387), 1649 states have internal predecessors, (2387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2391 transitions. [2022-02-15 00:48:56,432 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2391 transitions. Word has length 173 [2022-02-15 00:48:56,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:48:56,432 INFO L470 AbstractCegarLoop]: Abstraction has 1654 states and 2391 transitions. [2022-02-15 00:48:56,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:56,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2391 transitions. [2022-02-15 00:48:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 00:48:56,434 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:48:56,434 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:48:56,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 00:48:56,434 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:48:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:48:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-02-15 00:48:56,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:48:56,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181816698] [2022-02-15 00:48:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:48:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:48:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:48:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:48:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-02-15 00:48:56,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:48:56,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181816698] [2022-02-15 00:48:56,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181816698] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:48:56,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:48:56,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:48:56,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530387438] [2022-02-15 00:48:56,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:48:56,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:48:56,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:48:56,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:48:56,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:48:56,523 INFO L87 Difference]: Start difference. First operand 1654 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:48:58,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:48:59,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:01,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:01,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:01,968 INFO L93 Difference]: Finished difference Result 2155 states and 3117 transitions. [2022-02-15 00:49:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:49:01,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-15 00:49:01,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:01,973 INFO L225 Difference]: With dead ends: 2155 [2022-02-15 00:49:01,974 INFO L226 Difference]: Without dead ends: 2155 [2022-02-15 00:49:01,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:49:01,974 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:01,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 447 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-02-15 00:49:01,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2022-02-15 00:49:01,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2155. [2022-02-15 00:49:01,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 2150 states have (on average 1.4479069767441861) internal successors, (3113), 2150 states have internal predecessors, (3113), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:01,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3117 transitions. [2022-02-15 00:49:01,994 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3117 transitions. Word has length 174 [2022-02-15 00:49:01,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:01,994 INFO L470 AbstractCegarLoop]: Abstraction has 2155 states and 3117 transitions. [2022-02-15 00:49:01,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:01,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3117 transitions. [2022-02-15 00:49:01,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-02-15 00:49:01,997 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:01,997 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:01,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 00:49:01,997 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:01,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:01,998 INFO L85 PathProgramCache]: Analyzing trace with hash -222767815, now seen corresponding path program 1 times [2022-02-15 00:49:01,998 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:01,998 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352116290] [2022-02-15 00:49:01,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:01,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:02,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-15 00:49:02,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:02,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352116290] [2022-02-15 00:49:02,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352116290] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:02,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:02,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:49:02,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632591907] [2022-02-15 00:49:02,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:02,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:49:02,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:49:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:49:02,078 INFO L87 Difference]: Start difference. First operand 2155 states and 3117 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:04,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:06,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:06,796 INFO L93 Difference]: Finished difference Result 2157 states and 3119 transitions. [2022-02-15 00:49:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:49:06,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-02-15 00:49:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:06,801 INFO L225 Difference]: With dead ends: 2157 [2022-02-15 00:49:06,801 INFO L226 Difference]: Without dead ends: 2157 [2022-02-15 00:49:06,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:49:06,802 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:06,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 00:49:06,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2157 states. [2022-02-15 00:49:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2157 to 2157. [2022-02-15 00:49:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2157 states, 2152 states have (on average 1.4474907063197027) internal successors, (3115), 2152 states have internal predecessors, (3115), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2157 states to 2157 states and 3119 transitions. [2022-02-15 00:49:06,823 INFO L78 Accepts]: Start accepts. Automaton has 2157 states and 3119 transitions. Word has length 174 [2022-02-15 00:49:06,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:06,823 INFO L470 AbstractCegarLoop]: Abstraction has 2157 states and 3119 transitions. [2022-02-15 00:49:06,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2157 states and 3119 transitions. [2022-02-15 00:49:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-02-15 00:49:06,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:06,827 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:06,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 00:49:06,827 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1725486435, now seen corresponding path program 1 times [2022-02-15 00:49:06,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:06,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256072864] [2022-02-15 00:49:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:06,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:06,969 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-02-15 00:49:06,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:06,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256072864] [2022-02-15 00:49:06,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256072864] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:06,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:06,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:06,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890806299] [2022-02-15 00:49:06,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:06,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:06,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:06,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:06,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:06,970 INFO L87 Difference]: Start difference. First operand 2157 states and 3119 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:08,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:09,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:09,399 INFO L93 Difference]: Finished difference Result 2414 states and 3466 transitions. [2022-02-15 00:49:09,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:09,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 267 [2022-02-15 00:49:09,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:09,403 INFO L225 Difference]: With dead ends: 2414 [2022-02-15 00:49:09,404 INFO L226 Difference]: Without dead ends: 2414 [2022-02-15 00:49:09,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:09,404 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 70 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:09,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 597 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 512 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 00:49:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-02-15 00:49:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 2201. [2022-02-15 00:49:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2196 states have (on average 1.447632058287796) internal successors, (3179), 2196 states have internal predecessors, (3179), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3183 transitions. [2022-02-15 00:49:09,428 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3183 transitions. Word has length 267 [2022-02-15 00:49:09,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:09,428 INFO L470 AbstractCegarLoop]: Abstraction has 2201 states and 3183 transitions. [2022-02-15 00:49:09,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:09,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3183 transitions. [2022-02-15 00:49:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-02-15 00:49:09,431 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:09,432 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:09,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 00:49:09,432 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:09,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:09,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1784133777, now seen corresponding path program 1 times [2022-02-15 00:49:09,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:09,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691974544] [2022-02-15 00:49:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:09,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:09,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2022-02-15 00:49:09,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:09,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691974544] [2022-02-15 00:49:09,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691974544] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:09,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:09,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:09,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455946620] [2022-02-15 00:49:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:09,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:09,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:09,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:09,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:09,586 INFO L87 Difference]: Start difference. First operand 2201 states and 3183 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:10,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:12,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:13,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:15,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:15,788 INFO L93 Difference]: Finished difference Result 2406 states and 3454 transitions. [2022-02-15 00:49:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:15,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 268 [2022-02-15 00:49:15,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:15,792 INFO L225 Difference]: With dead ends: 2406 [2022-02-15 00:49:15,792 INFO L226 Difference]: Without dead ends: 2406 [2022-02-15 00:49:15,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:15,793 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 48 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:15,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 593 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:49:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-02-15 00:49:15,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2281. [2022-02-15 00:49:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 2276 states have (on average 1.4442003514938488) internal successors, (3287), 2276 states have internal predecessors, (3287), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:15,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3291 transitions. [2022-02-15 00:49:15,812 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3291 transitions. Word has length 268 [2022-02-15 00:49:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:15,812 INFO L470 AbstractCegarLoop]: Abstraction has 2281 states and 3291 transitions. [2022-02-15 00:49:15,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 4 states have internal predecessors, (144), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:15,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3291 transitions. [2022-02-15 00:49:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-15 00:49:15,815 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:15,815 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:15,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 00:49:15,816 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:15,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:15,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1081130711, now seen corresponding path program 1 times [2022-02-15 00:49:15,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:15,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332175398] [2022-02-15 00:49:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:15,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-02-15 00:49:15,965 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:15,965 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332175398] [2022-02-15 00:49:15,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332175398] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:15,965 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:15,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:15,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537961265] [2022-02-15 00:49:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:15,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:15,965 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:15,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:15,966 INFO L87 Difference]: Start difference. First operand 2281 states and 3291 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:18,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:19,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:19,746 INFO L93 Difference]: Finished difference Result 2406 states and 3450 transitions. [2022-02-15 00:49:19,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:19,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 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 277 [2022-02-15 00:49:19,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:19,749 INFO L225 Difference]: With dead ends: 2406 [2022-02-15 00:49:19,749 INFO L226 Difference]: Without dead ends: 2406 [2022-02-15 00:49:19,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:19,750 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:19,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-02-15 00:49:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2022-02-15 00:49:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2297. [2022-02-15 00:49:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 2292 states have (on average 1.4445898778359512) internal successors, (3311), 2292 states have internal predecessors, (3311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3315 transitions. [2022-02-15 00:49:19,768 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3315 transitions. Word has length 277 [2022-02-15 00:49:19,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:19,768 INFO L470 AbstractCegarLoop]: Abstraction has 2297 states and 3315 transitions. [2022-02-15 00:49:19,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3315 transitions. [2022-02-15 00:49:19,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-02-15 00:49:19,771 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:19,772 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:19,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 00:49:19,772 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:19,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1245485029, now seen corresponding path program 1 times [2022-02-15 00:49:19,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:19,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886294408] [2022-02-15 00:49:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:19,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:19,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-02-15 00:49:19,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:19,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886294408] [2022-02-15 00:49:19,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886294408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:19,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:19,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:19,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895867466] [2022-02-15 00:49:19,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:19,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:19,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:19,944 INFO L87 Difference]: Start difference. First operand 2297 states and 3315 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:22,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:24,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:24,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:24,798 INFO L93 Difference]: Finished difference Result 2398 states and 3438 transitions. [2022-02-15 00:49:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:24,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 278 [2022-02-15 00:49:24,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:24,802 INFO L225 Difference]: With dead ends: 2398 [2022-02-15 00:49:24,802 INFO L226 Difference]: Without dead ends: 2398 [2022-02-15 00:49:24,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:24,803 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 40 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:24,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 587 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 502 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-02-15 00:49:24,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-02-15 00:49:24,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2301. [2022-02-15 00:49:24,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.443815331010453) internal successors, (3315), 2296 states have internal predecessors, (3315), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3319 transitions. [2022-02-15 00:49:24,822 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3319 transitions. Word has length 278 [2022-02-15 00:49:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:24,822 INFO L470 AbstractCegarLoop]: Abstraction has 2301 states and 3319 transitions. [2022-02-15 00:49:24,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:24,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3319 transitions. [2022-02-15 00:49:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-02-15 00:49:24,825 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:24,826 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:24,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 00:49:24,826 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:24,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2131122745, now seen corresponding path program 1 times [2022-02-15 00:49:24,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:24,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15032764] [2022-02-15 00:49:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:24,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:24,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 475 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-02-15 00:49:24,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:24,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15032764] [2022-02-15 00:49:24,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15032764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:24,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:24,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:24,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110138925] [2022-02-15 00:49:24,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:24,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:24,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:24,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:24,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:24,998 INFO L87 Difference]: Start difference. First operand 2301 states and 3319 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:26,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:28,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:30,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:31,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:32,115 INFO L93 Difference]: Finished difference Result 2390 states and 3422 transitions. [2022-02-15 00:49:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:32,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 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 296 [2022-02-15 00:49:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:32,119 INFO L225 Difference]: With dead ends: 2390 [2022-02-15 00:49:32,119 INFO L226 Difference]: Without dead ends: 2390 [2022-02-15 00:49:32,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:32,119 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 47 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:32,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 585 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-02-15 00:49:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2022-02-15 00:49:32,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2301. [2022-02-15 00:49:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4420731707317074) internal successors, (3311), 2296 states have internal predecessors, (3311), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:32,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3315 transitions. [2022-02-15 00:49:32,137 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3315 transitions. Word has length 296 [2022-02-15 00:49:32,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:32,137 INFO L470 AbstractCegarLoop]: Abstraction has 2301 states and 3315 transitions. [2022-02-15 00:49:32,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3315 transitions. [2022-02-15 00:49:32,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-02-15 00:49:32,140 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:32,140 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:32,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 00:49:32,140 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:32,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:32,140 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-02-15 00:49:32,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:32,141 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358601062] [2022-02-15 00:49:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 474 proven. 106 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-02-15 00:49:32,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:32,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358601062] [2022-02-15 00:49:32,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358601062] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:49:32,328 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943714498] [2022-02-15 00:49:32,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:32,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:49:32,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:49:32,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:49:32,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-15 00:49:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:33,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-15 00:49:33,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:49:33,409 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:49:33,410 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:49:33,455 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:49:33,455 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:49:33,591 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:49:33,611 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:49:33,611 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:49:33,681 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:49:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 477 proven. 64 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-02-15 00:49:33,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:49:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-02-15 00:49:34,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943714498] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:49:34,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:49:34,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-02-15 00:49:34,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024399704] [2022-02-15 00:49:34,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:34,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:49:34,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:34,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:49:34,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 00:49:34,184 INFO L87 Difference]: Start difference. First operand 2301 states and 3315 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:35,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:35,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:35,649 INFO L93 Difference]: Finished difference Result 2567 states and 3658 transitions. [2022-02-15 00:49:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:49:35,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 297 [2022-02-15 00:49:35,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:35,653 INFO L225 Difference]: With dead ends: 2567 [2022-02-15 00:49:35,653 INFO L226 Difference]: Without dead ends: 2567 [2022-02-15 00:49:35,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 595 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:49:35,653 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 105 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:35,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 409 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-15 00:49:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-02-15 00:49:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2301. [2022-02-15 00:49:35,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 2296 states have (on average 1.4390243902439024) internal successors, (3304), 2296 states have internal predecessors, (3304), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3308 transitions. [2022-02-15 00:49:35,673 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3308 transitions. Word has length 297 [2022-02-15 00:49:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:35,673 INFO L470 AbstractCegarLoop]: Abstraction has 2301 states and 3308 transitions. [2022-02-15 00:49:35,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3308 transitions. [2022-02-15 00:49:35,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-02-15 00:49:35,676 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:35,676 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:35,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-15 00:49:35,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2022-02-15 00:49:35,890 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-02-15 00:49:35,891 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:35,891 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891366351] [2022-02-15 00:49:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:35,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:36,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:36,160 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-02-15 00:49:36,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:36,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891366351] [2022-02-15 00:49:36,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891366351] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:36,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:36,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 00:49:36,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811393350] [2022-02-15 00:49:36,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:36,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 00:49:36,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 00:49:36,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:49:36,161 INFO L87 Difference]: Start difference. First operand 2301 states and 3308 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:37,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:38,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:40,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:42,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:44,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:46,942 INFO L93 Difference]: Finished difference Result 4380 states and 6286 transitions. [2022-02-15 00:49:46,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 00:49:46,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 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 297 [2022-02-15 00:49:46,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:46,948 INFO L225 Difference]: With dead ends: 4380 [2022-02-15 00:49:46,949 INFO L226 Difference]: Without dead ends: 4380 [2022-02-15 00:49:46,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-02-15 00:49:46,949 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 190 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:46,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 1263 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1390 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-02-15 00:49:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4380 states. [2022-02-15 00:49:46,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4380 to 4121. [2022-02-15 00:49:46,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4121 states, 4116 states have (on average 1.4523809523809523) internal successors, (5978), 4116 states have internal predecessors, (5978), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4121 states to 4121 states and 5982 transitions. [2022-02-15 00:49:46,986 INFO L78 Accepts]: Start accepts. Automaton has 4121 states and 5982 transitions. Word has length 297 [2022-02-15 00:49:46,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:46,986 INFO L470 AbstractCegarLoop]: Abstraction has 4121 states and 5982 transitions. [2022-02-15 00:49:46,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:46,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4121 states and 5982 transitions. [2022-02-15 00:49:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-15 00:49:46,991 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:46,991 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:46,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 00:49:46,992 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:46,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:46,992 INFO L85 PathProgramCache]: Analyzing trace with hash -922148886, now seen corresponding path program 1 times [2022-02-15 00:49:46,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:46,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281362692] [2022-02-15 00:49:46,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:46,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:47,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:47,151 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-02-15 00:49:47,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:47,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281362692] [2022-02-15 00:49:47,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281362692] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:47,152 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:47,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:47,152 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692107323] [2022-02-15 00:49:47,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:47,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:47,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:47,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:47,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:47,154 INFO L87 Difference]: Start difference. First operand 4121 states and 5982 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:48,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:50,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:52,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:54,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:55,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:49:55,292 INFO L93 Difference]: Finished difference Result 4607 states and 6640 transitions. [2022-02-15 00:49:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:49:55,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 298 [2022-02-15 00:49:55,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:49:55,299 INFO L225 Difference]: With dead ends: 4607 [2022-02-15 00:49:55,299 INFO L226 Difference]: Without dead ends: 4607 [2022-02-15 00:49:55,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:49:55,299 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:49:55,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-02-15 00:49:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4607 states. [2022-02-15 00:49:55,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4607 to 4209. [2022-02-15 00:49:55,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4209 states, 4204 states have (on average 1.4524262607040914) internal successors, (6106), 4204 states have internal predecessors, (6106), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4209 states to 4209 states and 6110 transitions. [2022-02-15 00:49:55,356 INFO L78 Accepts]: Start accepts. Automaton has 4209 states and 6110 transitions. Word has length 298 [2022-02-15 00:49:55,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:49:55,357 INFO L470 AbstractCegarLoop]: Abstraction has 4209 states and 6110 transitions. [2022-02-15 00:49:55,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:55,357 INFO L276 IsEmpty]: Start isEmpty. Operand 4209 states and 6110 transitions. [2022-02-15 00:49:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-02-15 00:49:55,362 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:49:55,362 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:49:55,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 00:49:55,363 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:49:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:49:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-02-15 00:49:55,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:49:55,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203461318] [2022-02-15 00:49:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:49:55,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:49:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:55,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:49:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:49:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-02-15 00:49:55,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:49:55,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203461318] [2022-02-15 00:49:55,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203461318] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:49:55,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:49:55,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:49:55,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205969786] [2022-02-15 00:49:55,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:49:55,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:49:55,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:49:55,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:49:55,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:49:55,499 INFO L87 Difference]: Start difference. First operand 4209 states and 6110 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:49:56,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:49:57,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:00,291 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:00,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:00,668 INFO L93 Difference]: Finished difference Result 4355 states and 6280 transitions. [2022-02-15 00:50:00,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:00,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 298 [2022-02-15 00:50:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:00,673 INFO L225 Difference]: With dead ends: 4355 [2022-02-15 00:50:00,674 INFO L226 Difference]: Without dead ends: 4323 [2022-02-15 00:50:00,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:00,674 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 31 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:00,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 581 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-02-15 00:50:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2022-02-15 00:50:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 4201. [2022-02-15 00:50:00,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4201 states, 4196 states have (on average 1.4513822688274547) internal successors, (6090), 4196 states have internal predecessors, (6090), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 6094 transitions. [2022-02-15 00:50:00,708 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 6094 transitions. Word has length 298 [2022-02-15 00:50:00,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:00,708 INFO L470 AbstractCegarLoop]: Abstraction has 4201 states and 6094 transitions. [2022-02-15 00:50:00,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:00,708 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 6094 transitions. [2022-02-15 00:50:00,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-15 00:50:00,713 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:00,713 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:00,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 00:50:00,713 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:00,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:00,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1644493762, now seen corresponding path program 1 times [2022-02-15 00:50:00,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:00,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811651770] [2022-02-15 00:50:00,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:00,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:00,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:00,866 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-02-15 00:50:00,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:00,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811651770] [2022-02-15 00:50:00,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811651770] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:00,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:00,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:00,866 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628548417] [2022-02-15 00:50:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:00,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:00,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:00,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:00,867 INFO L87 Difference]: Start difference. First operand 4201 states and 6094 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:01,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:03,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:05,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:07,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:08,270 INFO L93 Difference]: Finished difference Result 4307 states and 6218 transitions. [2022-02-15 00:50:08,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 299 [2022-02-15 00:50:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:08,276 INFO L225 Difference]: With dead ends: 4307 [2022-02-15 00:50:08,277 INFO L226 Difference]: Without dead ends: 4307 [2022-02-15 00:50:08,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:08,277 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:08,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 380 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-02-15 00:50:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2022-02-15 00:50:08,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4281. [2022-02-15 00:50:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 4276 states have (on average 1.4466791393826006) internal successors, (6186), 4276 states have internal predecessors, (6186), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:08,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 6190 transitions. [2022-02-15 00:50:08,344 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 6190 transitions. Word has length 299 [2022-02-15 00:50:08,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:08,344 INFO L470 AbstractCegarLoop]: Abstraction has 4281 states and 6190 transitions. [2022-02-15 00:50:08,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 6190 transitions. [2022-02-15 00:50:08,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-02-15 00:50:08,350 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:08,350 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:08,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 00:50:08,350 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:08,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:08,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1431479809, now seen corresponding path program 1 times [2022-02-15 00:50:08,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:08,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754666004] [2022-02-15 00:50:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:08,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 410 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-02-15 00:50:08,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:08,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754666004] [2022-02-15 00:50:08,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754666004] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:08,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:08,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:08,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789173491] [2022-02-15 00:50:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:08,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:08,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:08,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:08,521 INFO L87 Difference]: Start difference. First operand 4281 states and 6190 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:11,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:13,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:13,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:13,763 INFO L93 Difference]: Finished difference Result 4655 states and 6684 transitions. [2022-02-15 00:50:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:13,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 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 299 [2022-02-15 00:50:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:13,768 INFO L225 Difference]: With dead ends: 4655 [2022-02-15 00:50:13,768 INFO L226 Difference]: Without dead ends: 4655 [2022-02-15 00:50:13,768 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 [2022-02-15 00:50:13,768 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:13,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 577 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 499 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 00:50:13,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4655 states. [2022-02-15 00:50:13,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4655 to 4325. [2022-02-15 00:50:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4320 states have (on average 1.4458333333333333) internal successors, (6246), 4320 states have internal predecessors, (6246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:13,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 6250 transitions. [2022-02-15 00:50:13,822 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 6250 transitions. Word has length 299 [2022-02-15 00:50:13,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:13,822 INFO L470 AbstractCegarLoop]: Abstraction has 4325 states and 6250 transitions. [2022-02-15 00:50:13,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:13,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 6250 transitions. [2022-02-15 00:50:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-02-15 00:50:13,844 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:13,844 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:13,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 00:50:13,844 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:13,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:13,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1259862963, now seen corresponding path program 1 times [2022-02-15 00:50:13,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:13,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395233414] [2022-02-15 00:50:13,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:13,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-02-15 00:50:14,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:14,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395233414] [2022-02-15 00:50:14,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395233414] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:14,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:14,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:14,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473213303] [2022-02-15 00:50:14,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:14,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:14,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:14,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:14,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:14,093 INFO L87 Difference]: Start difference. First operand 4325 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:15,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:17,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:18,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:18,237 INFO L93 Difference]: Finished difference Result 4639 states and 6660 transitions. [2022-02-15 00:50:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:18,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 300 [2022-02-15 00:50:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:18,241 INFO L225 Difference]: With dead ends: 4639 [2022-02-15 00:50:18,241 INFO L226 Difference]: Without dead ends: 4639 [2022-02-15 00:50:18,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:18,242 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 47 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:18,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 579 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-02-15 00:50:18,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2022-02-15 00:50:18,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 4417. [2022-02-15 00:50:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.442883046237534) internal successors, (6366), 4412 states have internal predecessors, (6366), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:18,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6370 transitions. [2022-02-15 00:50:18,277 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6370 transitions. Word has length 300 [2022-02-15 00:50:18,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:18,277 INFO L470 AbstractCegarLoop]: Abstraction has 4417 states and 6370 transitions. [2022-02-15 00:50:18,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 4 states have internal predecessors, (149), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:18,278 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6370 transitions. [2022-02-15 00:50:18,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-02-15 00:50:18,294 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:18,294 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:18,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 00:50:18,294 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:18,295 INFO L85 PathProgramCache]: Analyzing trace with hash 502472203, now seen corresponding path program 1 times [2022-02-15 00:50:18,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:18,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402410782] [2022-02-15 00:50:18,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:18,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-02-15 00:50:18,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:18,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402410782] [2022-02-15 00:50:18,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402410782] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:18,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:18,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:18,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487235840] [2022-02-15 00:50:18,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:18,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:18,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:18,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:18,419 INFO L87 Difference]: Start difference. First operand 4417 states and 6370 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:19,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:22,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:22,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:22,472 INFO L93 Difference]: Finished difference Result 4539 states and 6512 transitions. [2022-02-15 00:50:22,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:22,473 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 309 [2022-02-15 00:50:22,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:22,477 INFO L225 Difference]: With dead ends: 4539 [2022-02-15 00:50:22,477 INFO L226 Difference]: Without dead ends: 4539 [2022-02-15 00:50:22,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:22,477 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 30 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:22,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 579 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:50:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-02-15 00:50:22,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4417. [2022-02-15 00:50:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4417 states, 4412 states have (on average 1.4410698096101542) internal successors, (6358), 4412 states have internal predecessors, (6358), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4417 states to 4417 states and 6362 transitions. [2022-02-15 00:50:22,509 INFO L78 Accepts]: Start accepts. Automaton has 4417 states and 6362 transitions. Word has length 309 [2022-02-15 00:50:22,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:22,509 INFO L470 AbstractCegarLoop]: Abstraction has 4417 states and 6362 transitions. [2022-02-15 00:50:22,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4417 states and 6362 transitions. [2022-02-15 00:50:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-02-15 00:50:22,513 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:22,513 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:22,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 00:50:22,514 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:22,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:22,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1430463166, now seen corresponding path program 1 times [2022-02-15 00:50:22,514 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:22,514 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340899680] [2022-02-15 00:50:22,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:22,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-02-15 00:50:22,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:22,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340899680] [2022-02-15 00:50:22,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340899680] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:22,655 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:22,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:22,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045584268] [2022-02-15 00:50:22,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:22,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:22,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:22,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:22,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:22,657 INFO L87 Difference]: Start difference. First operand 4417 states and 6362 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:25,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:26,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:26,634 INFO L93 Difference]: Finished difference Result 4507 states and 6464 transitions. [2022-02-15 00:50:26,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:26,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 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 310 [2022-02-15 00:50:26,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:26,638 INFO L225 Difference]: With dead ends: 4507 [2022-02-15 00:50:26,638 INFO L226 Difference]: Without dead ends: 4435 [2022-02-15 00:50:26,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:26,638 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 26 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:26,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 571 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-02-15 00:50:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2022-02-15 00:50:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 4345. [2022-02-15 00:50:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4345 states, 4340 states have (on average 1.4465437788018434) internal successors, (6278), 4340 states have internal predecessors, (6278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:26,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 4345 states and 6282 transitions. [2022-02-15 00:50:26,665 INFO L78 Accepts]: Start accepts. Automaton has 4345 states and 6282 transitions. Word has length 310 [2022-02-15 00:50:26,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:26,665 INFO L470 AbstractCegarLoop]: Abstraction has 4345 states and 6282 transitions. [2022-02-15 00:50:26,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:26,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4345 states and 6282 transitions. [2022-02-15 00:50:26,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-02-15 00:50:26,669 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:26,669 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:26,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 00:50:26,669 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:26,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:26,669 INFO L85 PathProgramCache]: Analyzing trace with hash -953423688, now seen corresponding path program 1 times [2022-02-15 00:50:26,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:26,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630902497] [2022-02-15 00:50:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:26,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:26,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:26,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:26,819 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-02-15 00:50:26,819 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:26,819 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630902497] [2022-02-15 00:50:26,819 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630902497] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:26,819 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:26,819 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:26,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879309743] [2022-02-15 00:50:26,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:26,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:26,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:26,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:26,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:26,820 INFO L87 Difference]: Start difference. First operand 4345 states and 6282 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:29,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:30,966 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:31,282 INFO L93 Difference]: Finished difference Result 4403 states and 6344 transitions. [2022-02-15 00:50:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 318 [2022-02-15 00:50:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:31,286 INFO L225 Difference]: With dead ends: 4403 [2022-02-15 00:50:31,286 INFO L226 Difference]: Without dead ends: 4387 [2022-02-15 00:50:31,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:31,287 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:31,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 563 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-02-15 00:50:31,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-02-15 00:50:31,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-02-15 00:50:31,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.446345975948196) internal successors, (6254), 4324 states have internal predecessors, (6254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:31,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6258 transitions. [2022-02-15 00:50:31,326 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6258 transitions. Word has length 318 [2022-02-15 00:50:31,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:31,326 INFO L470 AbstractCegarLoop]: Abstraction has 4329 states and 6258 transitions. [2022-02-15 00:50:31,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:31,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6258 transitions. [2022-02-15 00:50:31,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-02-15 00:50:31,330 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:31,330 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:31,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 00:50:31,330 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:31,331 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-02-15 00:50:31,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:31,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188245391] [2022-02-15 00:50:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:31,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:31,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-02-15 00:50:31,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:31,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188245391] [2022-02-15 00:50:31,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188245391] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:31,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:31,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:31,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055007409] [2022-02-15 00:50:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:31,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:31,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:31,577 INFO L87 Difference]: Start difference. First operand 4329 states and 6258 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:32,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:34,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:37,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:37,805 INFO L93 Difference]: Finished difference Result 4387 states and 6320 transitions. [2022-02-15 00:50:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:37,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 319 [2022-02-15 00:50:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:37,809 INFO L225 Difference]: With dead ends: 4387 [2022-02-15 00:50:37,810 INFO L226 Difference]: Without dead ends: 4387 [2022-02-15 00:50:37,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:37,810 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:37,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 561 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 401 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 00:50:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2022-02-15 00:50:37,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4329. [2022-02-15 00:50:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4329 states, 4324 states have (on average 1.4444958371877892) internal successors, (6246), 4324 states have internal predecessors, (6246), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:37,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6250 transitions. [2022-02-15 00:50:37,852 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6250 transitions. Word has length 319 [2022-02-15 00:50:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:37,852 INFO L470 AbstractCegarLoop]: Abstraction has 4329 states and 6250 transitions. [2022-02-15 00:50:37,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6250 transitions. [2022-02-15 00:50:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-02-15 00:50:37,856 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:37,856 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:37,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 00:50:37,856 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:37,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-02-15 00:50:37,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:37,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439006319] [2022-02-15 00:50:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-02-15 00:50:38,027 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:38,027 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439006319] [2022-02-15 00:50:38,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439006319] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:38,027 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:38,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:50:38,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246323979] [2022-02-15 00:50:38,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:38,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:50:38,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:38,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:50:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:50:38,031 INFO L87 Difference]: Start difference. First operand 4329 states and 6250 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:40,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:41,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:41,719 INFO L93 Difference]: Finished difference Result 4355 states and 6270 transitions. [2022-02-15 00:50:41,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:50:41,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 320 [2022-02-15 00:50:41,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:41,723 INFO L225 Difference]: With dead ends: 4355 [2022-02-15 00:50:41,723 INFO L226 Difference]: Without dead ends: 4339 [2022-02-15 00:50:41,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:50:41,724 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 15 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:41,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 553 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-02-15 00:50:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2022-02-15 00:50:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4145. [2022-02-15 00:50:41,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.448792270531401) internal successors, (5998), 4140 states have internal predecessors, (5998), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6002 transitions. [2022-02-15 00:50:41,754 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6002 transitions. Word has length 320 [2022-02-15 00:50:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:41,754 INFO L470 AbstractCegarLoop]: Abstraction has 4145 states and 6002 transitions. [2022-02-15 00:50:41,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:41,754 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6002 transitions. [2022-02-15 00:50:41,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-15 00:50:41,758 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:41,758 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:41,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 00:50:41,759 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-02-15 00:50:41,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:41,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450347251] [2022-02-15 00:50:41,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:41,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 905 trivial. 0 not checked. [2022-02-15 00:50:42,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:42,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450347251] [2022-02-15 00:50:42,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450347251] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:50:42,161 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:50:42,161 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 00:50:42,161 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557221314] [2022-02-15 00:50:42,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:50:42,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 00:50:42,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:50:42,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 00:50:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 00:50:42,162 INFO L87 Difference]: Start difference. First operand 4145 states and 6002 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:44,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:45,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:46,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:49,450 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:50:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:50:49,897 INFO L93 Difference]: Finished difference Result 4153 states and 6012 transitions. [2022-02-15 00:50:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 00:50:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 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 326 [2022-02-15 00:50:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:50:49,901 INFO L225 Difference]: With dead ends: 4153 [2022-02-15 00:50:49,901 INFO L226 Difference]: Without dead ends: 4145 [2022-02-15 00:50:49,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 00:50:49,902 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 7 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:50:49,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 822 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 438 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-02-15 00:50:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2022-02-15 00:50:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4145. [2022-02-15 00:50:49,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4145 states, 4140 states have (on average 1.4485507246376812) internal successors, (5997), 4140 states have internal predecessors, (5997), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:49,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4145 states to 4145 states and 6001 transitions. [2022-02-15 00:50:49,931 INFO L78 Accepts]: Start accepts. Automaton has 4145 states and 6001 transitions. Word has length 326 [2022-02-15 00:50:49,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:50:49,931 INFO L470 AbstractCegarLoop]: Abstraction has 4145 states and 6001 transitions. [2022-02-15 00:50:49,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:50:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 4145 states and 6001 transitions. [2022-02-15 00:50:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-02-15 00:50:49,935 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:50:49,935 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:50:49,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 00:50:49,935 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:50:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:50:49,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1006834184, now seen corresponding path program 1 times [2022-02-15 00:50:49,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:50:49,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568074357] [2022-02-15 00:50:49,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:49,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:50:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:50,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:50:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 513 proven. 209 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-02-15 00:50:50,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:50:50,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568074357] [2022-02-15 00:50:50,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568074357] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:50:50,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452640762] [2022-02-15 00:50:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:50:50,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:50:50,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:50:50,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:50:50,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-15 00:50:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:50:51,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 100 conjunts are in the unsatisfiable core [2022-02-15 00:50:51,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:50:51,929 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:50:51,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:50:52,019 INFO L353 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-02-15 00:50:52,020 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-02-15 00:50:52,115 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2022-02-15 00:50:52,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-02-15 00:50:52,128 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-15 00:50:52,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,202 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-02-15 00:50:52,245 INFO L353 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-02-15 00:50:52,245 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-02-15 00:50:52,256 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:50:52,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-02-15 00:50:52,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,870 INFO L353 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-02-15 00:50:52,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-02-15 00:50:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,875 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:50:52,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,879 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:50:52,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,927 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-02-15 00:50:52,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,951 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:50:52,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-02-15 00:50:52,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:52,956 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-02-15 00:50:53,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:53,629 INFO L353 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-02-15 00:50:53,629 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-02-15 00:50:53,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:53,662 INFO L353 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-02-15 00:50:53,663 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-02-15 00:50:53,704 INFO L353 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-02-15 00:50:53,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-02-15 00:50:56,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,194 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 313 treesize of output 253 [2022-02-15 00:50:56,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:56,246 INFO L353 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-02-15 00:50:56,247 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 313 treesize of output 332 [2022-02-15 00:50:56,276 INFO L353 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-02-15 00:50:56,277 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 341 treesize of output 281 [2022-02-15 00:50:59,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,296 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 250 [2022-02-15 00:50:59,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,308 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 308 treesize of output 244 [2022-02-15 00:50:59,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,329 INFO L353 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-02-15 00:50:59,330 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 308 treesize of output 302 [2022-02-15 00:50:59,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 205 treesize of output 139 [2022-02-15 00:50:59,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:50:59,587 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 85 [2022-02-15 00:50:59,611 INFO L353 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-02-15 00:50:59,612 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 104 treesize of output 105 [2022-02-15 00:50:59,679 INFO L353 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-02-15 00:50:59,680 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-02-15 00:50:59,799 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:50:59,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 11 [2022-02-15 00:50:59,826 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-15 00:50:59,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:51:04,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:51:04,116 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 307 [2022-02-15 00:51:04,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:51:04,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:51:04,120 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 227 [2022-02-15 00:51:04,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:51:04,124 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 229 [2022-02-15 00:51:04,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:51:04,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-15 00:51:04,129 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 154 [2022-02-15 00:51:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-02-15 00:51:06,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452640762] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-15 00:51:06,809 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-15 00:51:06,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21, 14] total 43 [2022-02-15 00:51:06,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987708894] [2022-02-15 00:51:06,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-15 00:51:06,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-15 00:51:06,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:06,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-15 00:51:06,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1500, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 00:51:06,810 INFO L87 Difference]: Start difference. First operand 4145 states and 6001 transitions. Second operand has 43 states, 43 states have (on average 11.69767441860465) internal successors, (503), 42 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:08,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:25,917 INFO L93 Difference]: Finished difference Result 19948 states and 27731 transitions. [2022-02-15 00:51:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-02-15 00:51:25,918 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 11.69767441860465) internal successors, (503), 42 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-02-15 00:51:25,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:25,936 INFO L225 Difference]: With dead ends: 19948 [2022-02-15 00:51:25,937 INFO L226 Difference]: Without dead ends: 19948 [2022-02-15 00:51:25,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 716 SyntacticMatches, 16 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12189 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=3792, Invalid=26310, Unknown=0, NotChecked=0, Total=30102 [2022-02-15 00:51:25,940 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 3623 mSDsluCounter, 9266 mSDsCounter, 0 mSdLazyCounter, 10634 mSolverCounterSat, 825 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3623 SdHoareTripleChecker+Valid, 9899 SdHoareTripleChecker+Invalid, 15368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 825 IncrementalHoareTripleChecker+Valid, 10634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 3908 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:25,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3623 Valid, 9899 Invalid, 15368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [825 Valid, 10634 Invalid, 1 Unknown, 3908 Unchecked, 12.4s Time] [2022-02-15 00:51:25,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19948 states. [2022-02-15 00:51:26,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19948 to 8137. [2022-02-15 00:51:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 8132 states have (on average 1.4536399409739302) internal successors, (11821), 8132 states have internal predecessors, (11821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:26,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 11825 transitions. [2022-02-15 00:51:26,075 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 11825 transitions. Word has length 326 [2022-02-15 00:51:26,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:26,075 INFO L470 AbstractCegarLoop]: Abstraction has 8137 states and 11825 transitions. [2022-02-15 00:51:26,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 11.69767441860465) internal successors, (503), 42 states have internal predecessors, (503), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:26,076 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 11825 transitions. [2022-02-15 00:51:26,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-02-15 00:51:26,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:26,083 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:26,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-15 00:51:26,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2022-02-15 00:51:26,284 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:26,284 INFO L85 PathProgramCache]: Analyzing trace with hash 672096791, now seen corresponding path program 1 times [2022-02-15 00:51:26,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:26,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106847279] [2022-02-15 00:51:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:26,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 611 proven. 55 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-02-15 00:51:26,480 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:26,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106847279] [2022-02-15 00:51:26,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106847279] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:51:26,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76835393] [2022-02-15 00:51:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:26,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:51:26,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:51:26,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:51:26,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-15 00:51:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:27,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1767 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-15 00:51:27,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:51:27,593 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:51:27,593 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-02-15 00:51:27,625 INFO L353 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-02-15 00:51:27,625 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:51:27,750 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-02-15 00:51:27,769 INFO L353 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-02-15 00:51:27,769 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-02-15 00:51:27,796 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-02-15 00:51:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 619 proven. 62 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-02-15 00:51:27,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-15 00:51:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-02-15 00:51:28,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76835393] provided 1 perfect and 1 imperfect interpolant sequences [2022-02-15 00:51:28,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-02-15 00:51:28,271 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 10 [2022-02-15 00:51:28,271 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417665640] [2022-02-15 00:51:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:28,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:28,271 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:28,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:28,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-02-15 00:51:28,272 INFO L87 Difference]: Start difference. First operand 8137 states and 11825 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:28,952 INFO L93 Difference]: Finished difference Result 8690 states and 12365 transitions. [2022-02-15 00:51:28,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:28,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 336 [2022-02-15 00:51:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:28,961 INFO L225 Difference]: With dead ends: 8690 [2022-02-15 00:51:28,961 INFO L226 Difference]: Without dead ends: 8690 [2022-02-15 00:51:28,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-15 00:51:28,961 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 119 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:28,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 385 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 00:51:28,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-02-15 00:51:29,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 8137. [2022-02-15 00:51:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 8132 states have (on average 1.4308903098868666) internal successors, (11636), 8132 states have internal predecessors, (11636), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:29,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 11640 transitions. [2022-02-15 00:51:29,052 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 11640 transitions. Word has length 336 [2022-02-15 00:51:29,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:29,052 INFO L470 AbstractCegarLoop]: Abstraction has 8137 states and 11640 transitions. [2022-02-15 00:51:29,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:29,052 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 11640 transitions. [2022-02-15 00:51:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-02-15 00:51:29,061 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:29,061 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:29,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-15 00:51:29,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:51:29,270 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:29,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash 311769257, now seen corresponding path program 1 times [2022-02-15 00:51:29,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:29,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312273559] [2022-02-15 00:51:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:29,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:29,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:29,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-02-15 00:51:29,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:29,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312273559] [2022-02-15 00:51:29,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312273559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:29,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:29,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:29,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993936459] [2022-02-15 00:51:29,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:29,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:29,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:29,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:29,413 INFO L87 Difference]: Start difference. First operand 8137 states and 11640 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:31,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:32,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:34,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:35,328 INFO L93 Difference]: Finished difference Result 8404 states and 11965 transitions. [2022-02-15 00:51:35,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:35,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 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 337 [2022-02-15 00:51:35,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:35,336 INFO L225 Difference]: With dead ends: 8404 [2022-02-15 00:51:35,337 INFO L226 Difference]: Without dead ends: 8404 [2022-02-15 00:51:35,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:51:35,337 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 13 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:35,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 547 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 00:51:35,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2022-02-15 00:51:35,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 8357. [2022-02-15 00:51:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8357 states, 8352 states have (on average 1.426125478927203) internal successors, (11911), 8352 states have internal predecessors, (11911), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8357 states to 8357 states and 11915 transitions. [2022-02-15 00:51:35,404 INFO L78 Accepts]: Start accepts. Automaton has 8357 states and 11915 transitions. Word has length 337 [2022-02-15 00:51:35,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:35,404 INFO L470 AbstractCegarLoop]: Abstraction has 8357 states and 11915 transitions. [2022-02-15 00:51:35,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 8357 states and 11915 transitions. [2022-02-15 00:51:35,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-02-15 00:51:35,413 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:35,413 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:35,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 00:51:35,413 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:35,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:35,413 INFO L85 PathProgramCache]: Analyzing trace with hash 942915248, now seen corresponding path program 1 times [2022-02-15 00:51:35,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:35,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49456369] [2022-02-15 00:51:35,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:35,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-02-15 00:51:35,594 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:35,594 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49456369] [2022-02-15 00:51:35,594 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49456369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:35,594 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:35,594 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 00:51:35,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731731207] [2022-02-15 00:51:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:35,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 00:51:35,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:35,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 00:51:35,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 00:51:35,595 INFO L87 Difference]: Start difference. First operand 8357 states and 11915 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:37,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:39,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:41,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:41,933 INFO L93 Difference]: Finished difference Result 8368 states and 11915 transitions. [2022-02-15 00:51:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 00:51:41,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 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 338 [2022-02-15 00:51:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:41,941 INFO L225 Difference]: With dead ends: 8368 [2022-02-15 00:51:41,941 INFO L226 Difference]: Without dead ends: 8106 [2022-02-15 00:51:41,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 00:51:41,941 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 10 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:41,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 541 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 367 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-02-15 00:51:41,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8106 states. [2022-02-15 00:51:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8106 to 7960. [2022-02-15 00:51:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7960 states, 7955 states have (on average 1.4240100565681961) internal successors, (11328), 7955 states have internal predecessors, (11328), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7960 states to 7960 states and 11332 transitions. [2022-02-15 00:51:42,009 INFO L78 Accepts]: Start accepts. Automaton has 7960 states and 11332 transitions. Word has length 338 [2022-02-15 00:51:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:42,010 INFO L470 AbstractCegarLoop]: Abstraction has 7960 states and 11332 transitions. [2022-02-15 00:51:42,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7960 states and 11332 transitions. [2022-02-15 00:51:42,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-02-15 00:51:42,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:42,017 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:42,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 00:51:42,017 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:42,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:42,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1034008123, now seen corresponding path program 1 times [2022-02-15 00:51:42,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:42,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200617362] [2022-02-15 00:51:42,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:42,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:42,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:42,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 677 proven. 17 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-02-15 00:51:42,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:42,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200617362] [2022-02-15 00:51:42,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200617362] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:51:42,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773946469] [2022-02-15 00:51:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:42,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:51:42,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:51:42,208 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:51:42,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-15 00:51:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:43,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-15 00:51:43,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:51:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2022-02-15 00:51:43,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-15 00:51:43,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773946469] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:43,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-15 00:51:43,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-02-15 00:51:43,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584136527] [2022-02-15 00:51:43,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:43,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 00:51:43,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 00:51:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:51:43,730 INFO L87 Difference]: Start difference. First operand 7960 states and 11332 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:43,771 INFO L93 Difference]: Finished difference Result 10287 states and 14655 transitions. [2022-02-15 00:51:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 00:51:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-02-15 00:51:43,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:43,781 INFO L225 Difference]: With dead ends: 10287 [2022-02-15 00:51:43,781 INFO L226 Difference]: Without dead ends: 10284 [2022-02-15 00:51:43,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 00:51:43,781 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 139 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:43,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 374 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 00:51:43,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10284 states. [2022-02-15 00:51:43,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10284 to 10224. [2022-02-15 00:51:43,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10224 states, 10219 states have (on average 1.4239162344652119) internal successors, (14551), 10219 states have internal predecessors, (14551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:43,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10224 states to 10224 states and 14555 transitions. [2022-02-15 00:51:43,889 INFO L78 Accepts]: Start accepts. Automaton has 10224 states and 14555 transitions. Word has length 338 [2022-02-15 00:51:43,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:43,890 INFO L470 AbstractCegarLoop]: Abstraction has 10224 states and 14555 transitions. [2022-02-15 00:51:43,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:43,890 INFO L276 IsEmpty]: Start isEmpty. Operand 10224 states and 14555 transitions. [2022-02-15 00:51:43,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-02-15 00:51:43,898 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:43,898 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:43,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-15 00:51:44,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:51:44,099 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:44,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash -488272360, now seen corresponding path program 1 times [2022-02-15 00:51:44,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:44,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879401015] [2022-02-15 00:51:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:44,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:44,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:44,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-02-15 00:51:44,257 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:44,257 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879401015] [2022-02-15 00:51:44,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879401015] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 00:51:44,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 00:51:44,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 00:51:44,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783841935] [2022-02-15 00:51:44,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 00:51:44,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 00:51:44,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-15 00:51:44,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 00:51:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:44,258 INFO L87 Difference]: Start difference. First operand 10224 states and 14555 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:45,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:46,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:48,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 00:51:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 00:51:48,896 INFO L93 Difference]: Finished difference Result 12551 states and 17882 transitions. [2022-02-15 00:51:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 00:51:48,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 338 [2022-02-15 00:51:48,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 00:51:48,907 INFO L225 Difference]: With dead ends: 12551 [2022-02-15 00:51:48,908 INFO L226 Difference]: Without dead ends: 12548 [2022-02-15 00:51:48,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 00:51:48,908 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-15 00:51:48,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 370 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 231 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-02-15 00:51:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12548 states. [2022-02-15 00:51:48,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12548 to 12488. [2022-02-15 00:51:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12488 states, 12483 states have (on average 1.4241768805575583) internal successors, (17778), 12483 states have internal predecessors, (17778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12488 states to 12488 states and 17782 transitions. [2022-02-15 00:51:49,008 INFO L78 Accepts]: Start accepts. Automaton has 12488 states and 17782 transitions. Word has length 338 [2022-02-15 00:51:49,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 00:51:49,009 INFO L470 AbstractCegarLoop]: Abstraction has 12488 states and 17782 transitions. [2022-02-15 00:51:49,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 3 states have internal predecessors, (135), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 00:51:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand 12488 states and 17782 transitions. [2022-02-15 00:51:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-02-15 00:51:49,018 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 00:51:49,018 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 00:51:49,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 00:51:49,018 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 00:51:49,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 00:51:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1081958893, now seen corresponding path program 2 times [2022-02-15 00:51:49,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-15 00:51:49,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52574558] [2022-02-15 00:51:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 00:51:49,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 00:51:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 00:51:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 00:51:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 567 proven. 92 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-02-15 00:51:49,879 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-15 00:51:49,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52574558] [2022-02-15 00:51:49,879 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52574558] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-15 00:51:49,879 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268486138] [2022-02-15 00:51:49,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-15 00:51:49,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-15 00:51:49,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 00:51:49,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-15 00:51:49,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-15 00:52:06,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-15 00:52:06,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-15 00:52:06,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1789 conjuncts, 202 conjunts are in the unsatisfiable core [2022-02-15 00:52:06,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-15 00:52:06,672 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 42505934 treesize of output 25922258 [2022-02-15 00:52:06,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:52:07,098 INFO L353 Elim1Store]: treesize reduction 520, result has 8.1 percent of original size [2022-02-15 00:52:07,100 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 101369306 treesize of output 101369325 [2022-02-15 00:52:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-15 00:52:20,800 INFO L244 Elim1Store]: Index analysis took 277 ms