/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.06.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-17 18:51:05,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-17 18:51:05,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-17 18:51:05,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-17 18:51:05,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-17 18:51:05,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-17 18:51:05,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-17 18:51:05,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-17 18:51:05,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-17 18:51:05,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-17 18:51:05,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-17 18:51:05,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-17 18:51:05,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-17 18:51:05,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-17 18:51:05,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-17 18:51:05,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-17 18:51:05,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-17 18:51:05,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-17 18:51:05,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-17 18:51:05,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-17 18:51:05,286 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-17 18:51:05,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-17 18:51:05,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-17 18:51:05,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-17 18:51:05,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-17 18:51:05,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-17 18:51:05,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-17 18:51:05,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-17 18:51:05,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-17 18:51:05,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-17 18:51:05,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-17 18:51:05,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-17 18:51:05,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-17 18:51:05,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-17 18:51:05,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-17 18:51:05,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-17 18:51:05,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-17 18:51:05,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-17 18:51:05,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-17 18:51:05,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-17 18:51:05,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-17 18:51:05,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-17 18:51:05,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-03-17 18:51:05,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-17 18:51:05,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-17 18:51:05,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-17 18:51:05,318 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-17 18:51:05,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-17 18:51:05,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-17 18:51:05,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-17 18:51:05,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-17 18:51:05,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-17 18:51:05,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:51:05,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-17 18:51:05,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-17 18:51:05,320 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-03-17 18:51:05,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-17 18:51:05,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-17 18:51:05,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-17 18:51:05,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-17 18:51:05,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-17 18:51:05,553 INFO L275 PluginConnector]: CDTParser initialized [2022-03-17 18:51:05,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-03-17 18:51:05,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7dea648/ba0bb998a78e4f359ed7306f71a10bfd/FLAGf7ed017cb [2022-03-17 18:51:06,071 INFO L306 CDTParser]: Found 1 translation units. [2022-03-17 18:51:06,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.06.i.cil-2.c [2022-03-17 18:51:06,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7dea648/ba0bb998a78e4f359ed7306f71a10bfd/FLAGf7ed017cb [2022-03-17 18:51:06,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7dea648/ba0bb998a78e4f359ed7306f71a10bfd [2022-03-17 18:51:06,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-17 18:51:06,104 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-17 18:51:06,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-17 18:51:06,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-17 18:51:06,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-17 18:51:06,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df9fd44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06, skipping insertion in model container [2022-03-17 18:51:06,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-17 18:51:06,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-17 18:51:06,466 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.06.i.cil-2.c[78808,78821] [2022-03-17 18:51:06,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:51:06,485 INFO L203 MainTranslator]: Completed pre-run [2022-03-17 18:51:06,596 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.06.i.cil-2.c[78808,78821] [2022-03-17 18:51:06,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-17 18:51:06,609 INFO L208 MainTranslator]: Completed translation [2022-03-17 18:51:06,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06 WrapperNode [2022-03-17 18:51:06,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-17 18:51:06,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-17 18:51:06,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-17 18:51:06,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-17 18:51:06,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-17 18:51:06,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-17 18:51:06,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-17 18:51:06,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-17 18:51:06,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (1/1) ... [2022-03-17 18:51:06,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-17 18:51:06,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:51:06,746 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) [2022-03-17 18:51:06,759 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 [2022-03-17 18:51:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-17 18:51:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-17 18:51:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-17 18:51:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-17 18:51:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-17 18:51:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-17 18:51:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-17 18:51:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-17 18:51:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-17 18:51:06,784 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-17 18:51:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-17 18:51:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-17 18:51:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-17 18:51:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-17 18:51:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-17 18:51:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-17 18:51:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-17 18:51:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-17 18:51:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-17 18:51:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-17 18:51:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-17 18:51:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-17 18:51:06,951 INFO L234 CfgBuilder]: Building ICFG [2022-03-17 18:51:06,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-17 18:51:07,658 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-17 18:51:08,080 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-17 18:51:08,080 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-17 18:51:08,090 INFO L275 CfgBuilder]: Performing block encoding [2022-03-17 18:51:08,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-17 18:51:08,100 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-17 18:51:08,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:51:08 BoogieIcfgContainer [2022-03-17 18:51:08,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-17 18:51:08,103 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-03-17 18:51:08,103 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-03-17 18:51:08,104 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-03-17 18:51:08,106 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:51:08" (1/1) ... [2022-03-17 18:51:08,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:51:08 BasicIcfg [2022-03-17 18:51:08,159 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-03-17 18:51:08,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-17 18:51:08,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-17 18:51:08,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-17 18:51:08,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:51:06" (1/4) ... [2022-03-17 18:51:08,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211c1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:51:08, skipping insertion in model container [2022-03-17 18:51:08,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:51:06" (2/4) ... [2022-03-17 18:51:08,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211c1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:51:08, skipping insertion in model container [2022-03-17 18:51:08,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.03 06:51:08" (3/4) ... [2022-03-17 18:51:08,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6211c1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 06:51:08, skipping insertion in model container [2022-03-17 18:51:08,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 17.03 06:51:08" (4/4) ... [2022-03-17 18:51:08,168 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.06.i.cil-2.cJordan [2022-03-17 18:51:08,173 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-03-17 18:51:08,173 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-17 18:51:08,220 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-17 18:51:08,226 INFO L340 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 [2022-03-17 18:51:08,226 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-17 18:51:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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) [2022-03-17 18:51:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-17 18:51:08,266 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:08,267 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:08,267 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:08,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:08,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1910801152, now seen corresponding path program 1 times [2022-03-17 18:51:08,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:08,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112652889] [2022-03-17 18:51:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:08,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:08,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:08,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112652889] [2022-03-17 18:51:08,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112652889] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:08,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:08,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:08,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584168132] [2022-03-17 18:51:08,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:08,748 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:08,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:08,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:08,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:08,774 INFO L87 Difference]: Start difference. First operand has 170 states, 162 states have (on average 1.728395061728395) internal successors, (280), 163 states have internal predecessors, (280), 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 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:11,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:11,217 INFO L93 Difference]: Finished difference Result 309 states and 521 transitions. [2022-03-17 18:51:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:11,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-03-17 18:51:11,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:11,227 INFO L225 Difference]: With dead ends: 309 [2022-03-17 18:51:11,227 INFO L226 Difference]: Without dead ends: 283 [2022-03-17 18:51:11,228 INFO L911 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 [2022-03-17 18:51:11,231 INFO L912 BasicCegarLoop]: 182 mSDtfsCounter, 174 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:11,239 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 535 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:51:11,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-03-17 18:51:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 194. [2022-03-17 18:51:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 189 states have (on average 1.6296296296296295) internal successors, (308), 189 states have internal predecessors, (308), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:11,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 312 transitions. [2022-03-17 18:51:11,290 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 312 transitions. Word has length 52 [2022-03-17 18:51:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:11,297 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 312 transitions. [2022-03-17 18:51:11,297 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:11,297 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 312 transitions. [2022-03-17 18:51:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-17 18:51:11,300 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:11,300 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:11,300 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-17 18:51:11,300 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:11,301 INFO L85 PathProgramCache]: Analyzing trace with hash -392851137, now seen corresponding path program 1 times [2022-03-17 18:51:11,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:11,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203487772] [2022-03-17 18:51:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:11,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:11,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:11,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203487772] [2022-03-17 18:51:11,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203487772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:11,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:11,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039218329] [2022-03-17 18:51:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:11,444 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:11,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:11,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:11,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:11,446 INFO L87 Difference]: Start difference. First operand 194 states and 312 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:14,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:16,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:16,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:16,931 INFO L93 Difference]: Finished difference Result 222 states and 352 transitions. [2022-03-17 18:51:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-03-17 18:51:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:16,939 INFO L225 Difference]: With dead ends: 222 [2022-03-17 18:51:16,939 INFO L226 Difference]: Without dead ends: 222 [2022-03-17 18:51:16,939 INFO L911 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 [2022-03-17 18:51:16,943 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 22 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:16,945 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 553 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-03-17 18:51:16,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-17 18:51:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 205. [2022-03-17 18:51:16,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.635) internal successors, (327), 200 states have internal predecessors, (327), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 331 transitions. [2022-03-17 18:51:16,960 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 331 transitions. Word has length 53 [2022-03-17 18:51:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:16,960 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 331 transitions. [2022-03-17 18:51:16,960 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 331 transitions. [2022-03-17 18:51:16,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-03-17 18:51:16,962 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:16,962 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:16,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-17 18:51:16,962 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:16,963 INFO L85 PathProgramCache]: Analyzing trace with hash 390573659, now seen corresponding path program 1 times [2022-03-17 18:51:16,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:16,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229034636] [2022-03-17 18:51:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:16,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:17,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:17,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229034636] [2022-03-17 18:51:17,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229034636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:17,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:17,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:17,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980562434] [2022-03-17 18:51:17,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:17,096 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:17,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:17,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:17,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:17,096 INFO L87 Difference]: Start difference. First operand 205 states and 331 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) [2022-03-17 18:51:19,047 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 [] [2022-03-17 18:51:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:20,297 INFO L93 Difference]: Finished difference Result 222 states and 351 transitions. [2022-03-17 18:51:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:20,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-03-17 18:51:20,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:20,298 INFO L225 Difference]: With dead ends: 222 [2022-03-17 18:51:20,298 INFO L226 Difference]: Without dead ends: 222 [2022-03-17 18:51:20,299 INFO L911 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 [2022-03-17 18:51:20,299 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 24 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:20,300 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 555 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:51:20,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-17 18:51:20,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 205. [2022-03-17 18:51:20,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.63) internal successors, (326), 200 states have internal predecessors, (326), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 330 transitions. [2022-03-17 18:51:20,310 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 330 transitions. Word has length 66 [2022-03-17 18:51:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:20,310 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 330 transitions. [2022-03-17 18:51:20,310 INFO L479 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) [2022-03-17 18:51:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 330 transitions. [2022-03-17 18:51:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:51:20,312 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:20,312 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:20,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-17 18:51:20,312 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:20,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1090106460, now seen corresponding path program 1 times [2022-03-17 18:51:20,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:20,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791112044] [2022-03-17 18:51:20,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:20,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:20,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:20,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:20,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791112044] [2022-03-17 18:51:20,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791112044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:20,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:20,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124944526] [2022-03-17 18:51:20,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:20,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:20,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:20,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:20,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:20,432 INFO L87 Difference]: Start difference. First operand 205 states and 330 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) [2022-03-17 18:51:21,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:24,115 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:25,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:26,369 INFO L93 Difference]: Finished difference Result 221 states and 349 transitions. [2022-03-17 18:51:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:26,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 18:51:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:26,370 INFO L225 Difference]: With dead ends: 221 [2022-03-17 18:51:26,370 INFO L226 Difference]: Without dead ends: 221 [2022-03-17 18:51:26,370 INFO L911 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 [2022-03-17 18:51:26,374 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 28 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:26,375 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 557 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-17 18:51:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-03-17 18:51:26,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 205. [2022-03-17 18:51:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.625) internal successors, (325), 200 states have internal predecessors, (325), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 329 transitions. [2022-03-17 18:51:26,382 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 329 transitions. Word has length 67 [2022-03-17 18:51:26,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:26,382 INFO L478 AbstractCegarLoop]: Abstraction has 205 states and 329 transitions. [2022-03-17 18:51:26,383 INFO L479 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) [2022-03-17 18:51:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 329 transitions. [2022-03-17 18:51:26,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:51:26,392 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:26,392 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:26,392 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-17 18:51:26,392 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:26,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:26,392 INFO L85 PathProgramCache]: Analyzing trace with hash -197455996, now seen corresponding path program 1 times [2022-03-17 18:51:26,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:26,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868171278] [2022-03-17 18:51:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:26,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:26,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:26,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:26,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868171278] [2022-03-17 18:51:26,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868171278] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:26,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:26,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:26,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718370284] [2022-03-17 18:51:26,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:26,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:26,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:26,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:26,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:26,528 INFO L87 Difference]: Start difference. First operand 205 states and 329 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) [2022-03-17 18:51:28,334 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 [] [2022-03-17 18:51:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:30,033 INFO L93 Difference]: Finished difference Result 333 states and 530 transitions. [2022-03-17 18:51:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:30,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 18:51:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:30,034 INFO L225 Difference]: With dead ends: 333 [2022-03-17 18:51:30,035 INFO L226 Difference]: Without dead ends: 333 [2022-03-17 18:51:30,035 INFO L911 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 [2022-03-17 18:51:30,035 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 169 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:30,036 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 416 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 18:51:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-03-17 18:51:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 217. [2022-03-17 18:51:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.6084905660377358) internal successors, (341), 212 states have internal predecessors, (341), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:30,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 345 transitions. [2022-03-17 18:51:30,046 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 345 transitions. Word has length 67 [2022-03-17 18:51:30,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:30,046 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 345 transitions. [2022-03-17 18:51:30,046 INFO L479 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) [2022-03-17 18:51:30,046 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 345 transitions. [2022-03-17 18:51:30,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:51:30,047 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:30,047 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:30,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-17 18:51:30,048 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:30,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash -90240667, now seen corresponding path program 1 times [2022-03-17 18:51:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:30,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308930376] [2022-03-17 18:51:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:30,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:30,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:30,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308930376] [2022-03-17 18:51:30,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308930376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:30,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:30,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:30,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686059775] [2022-03-17 18:51:30,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:30,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:30,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:30,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:30,183 INFO L87 Difference]: Start difference. First operand 217 states and 345 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) [2022-03-17 18:51:32,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:33,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:35,923 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 [] [2022-03-17 18:51:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:36,416 INFO L93 Difference]: Finished difference Result 333 states and 527 transitions. [2022-03-17 18:51:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:36,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 18:51:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:36,418 INFO L225 Difference]: With dead ends: 333 [2022-03-17 18:51:36,418 INFO L226 Difference]: Without dead ends: 333 [2022-03-17 18:51:36,418 INFO L911 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 [2022-03-17 18:51:36,419 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 163 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:36,419 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 416 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:51:36,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-03-17 18:51:36,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 222. [2022-03-17 18:51:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.6036866359447004) internal successors, (348), 217 states have internal predecessors, (348), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:36,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 352 transitions. [2022-03-17 18:51:36,424 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 352 transitions. Word has length 67 [2022-03-17 18:51:36,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:36,424 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 352 transitions. [2022-03-17 18:51:36,424 INFO L479 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) [2022-03-17 18:51:36,424 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 352 transitions. [2022-03-17 18:51:36,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-03-17 18:51:36,425 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:36,425 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:36,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-17 18:51:36,425 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1717897659, now seen corresponding path program 1 times [2022-03-17 18:51:36,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079006953] [2022-03-17 18:51:36,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:36,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:36,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:36,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079006953] [2022-03-17 18:51:36,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079006953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:36,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:36,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:36,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057243501] [2022-03-17 18:51:36,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:36,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:36,535 INFO L87 Difference]: Start difference. First operand 222 states and 352 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) [2022-03-17 18:51:38,337 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 [] [2022-03-17 18:51:39,729 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 [] [2022-03-17 18:51:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:40,726 INFO L93 Difference]: Finished difference Result 332 states and 523 transitions. [2022-03-17 18:51:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:40,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-03-17 18:51:40,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:40,728 INFO L225 Difference]: With dead ends: 332 [2022-03-17 18:51:40,728 INFO L226 Difference]: Without dead ends: 332 [2022-03-17 18:51:40,729 INFO L911 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 [2022-03-17 18:51:40,729 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 161 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:40,729 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 418 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 18:51:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-03-17 18:51:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 223. [2022-03-17 18:51:40,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.591743119266055) internal successors, (347), 218 states have internal predecessors, (347), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 351 transitions. [2022-03-17 18:51:40,734 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 351 transitions. Word has length 67 [2022-03-17 18:51:40,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:40,734 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 351 transitions. [2022-03-17 18:51:40,734 INFO L479 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) [2022-03-17 18:51:40,734 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 351 transitions. [2022-03-17 18:51:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-17 18:51:40,735 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:40,735 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:40,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-17 18:51:40,735 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:40,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:40,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1527409402, now seen corresponding path program 1 times [2022-03-17 18:51:40,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:40,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705734031] [2022-03-17 18:51:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:40,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:40,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:40,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705734031] [2022-03-17 18:51:40,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705734031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:40,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:40,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:40,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650173548] [2022-03-17 18:51:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:40,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:40,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:40,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:40,818 INFO L87 Difference]: Start difference. First operand 223 states and 351 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) [2022-03-17 18:51:41,968 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 [] [2022-03-17 18:51:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:44,173 INFO L93 Difference]: Finished difference Result 332 states and 520 transitions. [2022-03-17 18:51:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:44,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-17 18:51:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:44,175 INFO L225 Difference]: With dead ends: 332 [2022-03-17 18:51:44,175 INFO L226 Difference]: Without dead ends: 332 [2022-03-17 18:51:44,175 INFO L911 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 [2022-03-17 18:51:44,175 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 165 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:44,176 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 418 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:51:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-03-17 18:51:44,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 223. [2022-03-17 18:51:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.5779816513761469) internal successors, (344), 218 states have internal predecessors, (344), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 348 transitions. [2022-03-17 18:51:44,180 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 348 transitions. Word has length 68 [2022-03-17 18:51:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:44,180 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 348 transitions. [2022-03-17 18:51:44,180 INFO L479 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) [2022-03-17 18:51:44,180 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 348 transitions. [2022-03-17 18:51:44,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-17 18:51:44,181 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:44,181 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:44,181 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-17 18:51:44,181 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1798498624, now seen corresponding path program 1 times [2022-03-17 18:51:44,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:44,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753106736] [2022-03-17 18:51:44,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:44,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:44,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:44,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753106736] [2022-03-17 18:51:44,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753106736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:44,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:44,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136747217] [2022-03-17 18:51:44,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:44,266 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:44,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:44,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:44,266 INFO L87 Difference]: Start difference. First operand 223 states and 348 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) [2022-03-17 18:51:46,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:48,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:48,941 INFO L93 Difference]: Finished difference Result 236 states and 364 transitions. [2022-03-17 18:51:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-03-17 18:51:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:48,942 INFO L225 Difference]: With dead ends: 236 [2022-03-17 18:51:48,942 INFO L226 Difference]: Without dead ends: 236 [2022-03-17 18:51:48,942 INFO L911 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 [2022-03-17 18:51:48,943 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 20 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:48,943 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 563 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:51:48,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-03-17 18:51:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 223. [2022-03-17 18:51:48,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.573394495412844) internal successors, (343), 218 states have internal predecessors, (343), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 347 transitions. [2022-03-17 18:51:48,947 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 347 transitions. Word has length 69 [2022-03-17 18:51:48,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:48,947 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 347 transitions. [2022-03-17 18:51:48,947 INFO L479 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) [2022-03-17 18:51:48,947 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 347 transitions. [2022-03-17 18:51:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 18:51:48,948 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:48,948 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:48,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-17 18:51:48,948 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1750914583, now seen corresponding path program 1 times [2022-03-17 18:51:48,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:48,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557961357] [2022-03-17 18:51:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:48,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:49,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:49,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557961357] [2022-03-17 18:51:49,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557961357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:49,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:49,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:49,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604821197] [2022-03-17 18:51:49,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:49,047 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:49,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:49,049 INFO L87 Difference]: Start difference. First operand 223 states and 347 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:51,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:53,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:51:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:51:55,144 INFO L93 Difference]: Finished difference Result 226 states and 350 transitions. [2022-03-17 18:51:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:51:55,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-17 18:51:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:51:55,145 INFO L225 Difference]: With dead ends: 226 [2022-03-17 18:51:55,145 INFO L226 Difference]: Without dead ends: 226 [2022-03-17 18:51:55,146 INFO L911 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 [2022-03-17 18:51:55,146 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 11 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:51:55,146 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 577 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 364 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-17 18:51:55,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-03-17 18:51:55,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 223. [2022-03-17 18:51:55,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 218 states have (on average 1.5688073394495412) internal successors, (342), 218 states have internal predecessors, (342), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:55,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 346 transitions. [2022-03-17 18:51:55,150 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 346 transitions. Word has length 70 [2022-03-17 18:51:55,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:51:55,150 INFO L478 AbstractCegarLoop]: Abstraction has 223 states and 346 transitions. [2022-03-17 18:51:55,150 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:55,150 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 346 transitions. [2022-03-17 18:51:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-03-17 18:51:55,151 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:51:55,151 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:51:55,151 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-17 18:51:55,151 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:51:55,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:51:55,151 INFO L85 PathProgramCache]: Analyzing trace with hash -614571223, now seen corresponding path program 1 times [2022-03-17 18:51:55,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:51:55,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071530542] [2022-03-17 18:51:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:51:55,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:51:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:51:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:51:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-17 18:51:55,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:51:55,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071530542] [2022-03-17 18:51:55,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071530542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:51:55,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:51:55,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:51:55,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505656907] [2022-03-17 18:51:55,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:51:55,233 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:51:55,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:51:55,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:51:55,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:51:55,234 INFO L87 Difference]: Start difference. First operand 223 states and 346 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:51:59,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:00,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:00,975 INFO L93 Difference]: Finished difference Result 332 states and 517 transitions. [2022-03-17 18:52:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:00,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-03-17 18:52:00,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:00,976 INFO L225 Difference]: With dead ends: 332 [2022-03-17 18:52:00,976 INFO L226 Difference]: Without dead ends: 332 [2022-03-17 18:52:00,977 INFO L911 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 [2022-03-17 18:52:00,977 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 138 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:00,977 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 448 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-17 18:52:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-03-17 18:52:00,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 245. [2022-03-17 18:52:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 240 states have (on average 1.6041666666666667) internal successors, (385), 240 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:00,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 389 transitions. [2022-03-17 18:52:00,981 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 389 transitions. Word has length 70 [2022-03-17 18:52:00,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:00,981 INFO L478 AbstractCegarLoop]: Abstraction has 245 states and 389 transitions. [2022-03-17 18:52:00,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:00,982 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 389 transitions. [2022-03-17 18:52:00,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-17 18:52:00,982 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:00,982 INFO L500 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, 1, 1, 1] [2022-03-17 18:52:00,982 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-17 18:52:00,982 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:00,983 INFO L85 PathProgramCache]: Analyzing trace with hash 481022964, now seen corresponding path program 1 times [2022-03-17 18:52:00,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:00,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397262264] [2022-03-17 18:52:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:00,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:01,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-17 18:52:01,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:01,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397262264] [2022-03-17 18:52:01,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397262264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:01,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:01,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:01,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873717645] [2022-03-17 18:52:01,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:01,112 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:01,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:01,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:01,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:01,112 INFO L87 Difference]: Start difference. First operand 245 states and 389 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:03,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:03,117 INFO L93 Difference]: Finished difference Result 287 states and 449 transitions. [2022-03-17 18:52:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:03,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-17 18:52:03,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:03,118 INFO L225 Difference]: With dead ends: 287 [2022-03-17 18:52:03,119 INFO L226 Difference]: Without dead ends: 287 [2022-03-17 18:52:03,119 INFO L911 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 [2022-03-17 18:52:03,119 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 30 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:03,119 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 577 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 18:52:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-03-17 18:52:03,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 267. [2022-03-17 18:52:03,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 262 states have (on average 1.599236641221374) internal successors, (419), 262 states have internal predecessors, (419), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 423 transitions. [2022-03-17 18:52:03,125 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 423 transitions. Word has length 98 [2022-03-17 18:52:03,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:03,125 INFO L478 AbstractCegarLoop]: Abstraction has 267 states and 423 transitions. [2022-03-17 18:52:03,125 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 423 transitions. [2022-03-17 18:52:03,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-17 18:52:03,126 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:03,127 INFO L500 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, 1, 1, 1] [2022-03-17 18:52:03,127 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-17 18:52:03,127 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:03,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2075794812, now seen corresponding path program 1 times [2022-03-17 18:52:03,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:03,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173404218] [2022-03-17 18:52:03,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:03,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:03,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:52:03,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:03,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173404218] [2022-03-17 18:52:03,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173404218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:03,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:03,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:03,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232117581] [2022-03-17 18:52:03,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:03,250 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:03,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:03,251 INFO L87 Difference]: Start difference. First operand 267 states and 423 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) [2022-03-17 18:52:06,262 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 [] [2022-03-17 18:52:08,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:08,260 INFO L93 Difference]: Finished difference Result 392 states and 615 transitions. [2022-03-17 18:52:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:08,261 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 111 [2022-03-17 18:52:08,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:08,262 INFO L225 Difference]: With dead ends: 392 [2022-03-17 18:52:08,262 INFO L226 Difference]: Without dead ends: 392 [2022-03-17 18:52:08,262 INFO L911 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 [2022-03-17 18:52:08,263 INFO L912 BasicCegarLoop]: 282 mSDtfsCounter, 161 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:08,263 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 696 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 635 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-17 18:52:08,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-03-17 18:52:08,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 283. [2022-03-17 18:52:08,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5863309352517985) internal successors, (441), 278 states have internal predecessors, (441), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:08,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 445 transitions. [2022-03-17 18:52:08,268 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 445 transitions. Word has length 111 [2022-03-17 18:52:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:08,268 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 445 transitions. [2022-03-17 18:52:08,268 INFO L479 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) [2022-03-17 18:52:08,268 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 445 transitions. [2022-03-17 18:52:08,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-17 18:52:08,269 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:08,269 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:08,269 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-17 18:52:08,269 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:08,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:08,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1035119783, now seen corresponding path program 1 times [2022-03-17 18:52:08,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:08,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466673767] [2022-03-17 18:52:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:08,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-03-17 18:52:08,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:08,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466673767] [2022-03-17 18:52:08,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466673767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:08,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:08,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:08,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345381605] [2022-03-17 18:52:08,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:08,364 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:08,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:08,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:08,365 INFO L87 Difference]: Start difference. First operand 283 states and 445 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) [2022-03-17 18:52:10,267 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 [] [2022-03-17 18:52:11,297 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 [] [2022-03-17 18:52:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:12,619 INFO L93 Difference]: Finished difference Result 296 states and 460 transitions. [2022-03-17 18:52:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:12,620 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 112 [2022-03-17 18:52:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:12,621 INFO L225 Difference]: With dead ends: 296 [2022-03-17 18:52:12,621 INFO L226 Difference]: Without dead ends: 296 [2022-03-17 18:52:12,621 INFO L911 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 [2022-03-17 18:52:12,621 INFO L912 BasicCegarLoop]: 252 mSDtfsCounter, 20 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:12,622 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 642 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-03-17 18:52:12,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-03-17 18:52:12,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 283. [2022-03-17 18:52:12,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 278 states have internal predecessors, (440), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 444 transitions. [2022-03-17 18:52:12,626 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 444 transitions. Word has length 112 [2022-03-17 18:52:12,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:12,626 INFO L478 AbstractCegarLoop]: Abstraction has 283 states and 444 transitions. [2022-03-17 18:52:12,626 INFO L479 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) [2022-03-17 18:52:12,626 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 444 transitions. [2022-03-17 18:52:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-17 18:52:12,627 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:12,627 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:12,627 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-17 18:52:12,627 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:12,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:12,627 INFO L85 PathProgramCache]: Analyzing trace with hash 725734498, now seen corresponding path program 1 times [2022-03-17 18:52:12,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:12,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619940388] [2022-03-17 18:52:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:12,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-03-17 18:52:12,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:12,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619940388] [2022-03-17 18:52:12,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619940388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:12,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:12,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-17 18:52:12,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716285155] [2022-03-17 18:52:12,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:12,728 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-17 18:52:12,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:12,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-17 18:52:12,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-17 18:52:12,728 INFO L87 Difference]: Start difference. First operand 283 states and 444 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-03-17 18:52:13,882 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 [] [2022-03-17 18:52:17,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:18,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:18,935 INFO L93 Difference]: Finished difference Result 292 states and 455 transitions. [2022-03-17 18:52:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-17 18:52:18,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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 113 [2022-03-17 18:52:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:18,937 INFO L225 Difference]: With dead ends: 292 [2022-03-17 18:52:18,937 INFO L226 Difference]: Without dead ends: 292 [2022-03-17 18:52:18,937 INFO L911 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 [2022-03-17 18:52:18,937 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 3 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:18,937 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 729 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:52:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-03-17 18:52:18,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-03-17 18:52:18,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5714285714285714) internal successors, (451), 287 states have internal predecessors, (451), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:18,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 455 transitions. [2022-03-17 18:52:18,942 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 455 transitions. Word has length 113 [2022-03-17 18:52:18,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:18,942 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 455 transitions. [2022-03-17 18:52:18,942 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 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) [2022-03-17 18:52:18,942 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 455 transitions. [2022-03-17 18:52:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-17 18:52:18,943 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:18,943 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:18,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-17 18:52:18,943 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:18,944 INFO L85 PathProgramCache]: Analyzing trace with hash -134409914, now seen corresponding path program 1 times [2022-03-17 18:52:18,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:18,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861554961] [2022-03-17 18:52:18,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:18,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:19,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:52:19,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:19,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861554961] [2022-03-17 18:52:19,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861554961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:19,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:19,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:19,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26521134] [2022-03-17 18:52:19,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:19,029 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:19,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:19,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:19,030 INFO L87 Difference]: Start difference. First operand 292 states and 455 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:21,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:21,996 INFO L93 Difference]: Finished difference Result 388 states and 590 transitions. [2022-03-17 18:52:21,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:21,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have 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 [2022-03-17 18:52:21,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:21,998 INFO L225 Difference]: With dead ends: 388 [2022-03-17 18:52:21,998 INFO L226 Difference]: Without dead ends: 388 [2022-03-17 18:52:21,998 INFO L911 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 [2022-03-17 18:52:21,998 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 163 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:21,998 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 448 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 18:52:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-03-17 18:52:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 292. [2022-03-17 18:52:22,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5574912891986064) internal successors, (447), 287 states have internal predecessors, (447), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 451 transitions. [2022-03-17 18:52:22,003 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 451 transitions. Word has length 115 [2022-03-17 18:52:22,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:22,003 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 451 transitions. [2022-03-17 18:52:22,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:22,003 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 451 transitions. [2022-03-17 18:52:22,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-17 18:52:22,004 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:22,004 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:22,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-17 18:52:22,004 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:22,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1293142883, now seen corresponding path program 1 times [2022-03-17 18:52:22,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:22,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521185448] [2022-03-17 18:52:22,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:22,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-17 18:52:22,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:22,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521185448] [2022-03-17 18:52:22,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521185448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:22,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:22,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:22,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429276880] [2022-03-17 18:52:22,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:22,126 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:22,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:22,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:22,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:22,127 INFO L87 Difference]: Start difference. First operand 292 states and 451 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2022-03-17 18:52:23,257 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 [] [2022-03-17 18:52:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:25,509 INFO L93 Difference]: Finished difference Result 309 states and 472 transitions. [2022-03-17 18:52:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:25,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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 116 [2022-03-17 18:52:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:25,511 INFO L225 Difference]: With dead ends: 309 [2022-03-17 18:52:25,511 INFO L226 Difference]: Without dead ends: 309 [2022-03-17 18:52:25,511 INFO L911 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 [2022-03-17 18:52:25,511 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 33 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:25,512 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 583 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:52:25,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-03-17 18:52:25,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 292. [2022-03-17 18:52:25,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 287 states have (on average 1.5540069686411149) internal successors, (446), 287 states have internal predecessors, (446), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 450 transitions. [2022-03-17 18:52:25,516 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 450 transitions. Word has length 116 [2022-03-17 18:52:25,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:25,516 INFO L478 AbstractCegarLoop]: Abstraction has 292 states and 450 transitions. [2022-03-17 18:52:25,516 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 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) [2022-03-17 18:52:25,516 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 450 transitions. [2022-03-17 18:52:25,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-17 18:52:25,517 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:25,517 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:25,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-17 18:52:25,517 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:25,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:25,517 INFO L85 PathProgramCache]: Analyzing trace with hash -242661549, now seen corresponding path program 1 times [2022-03-17 18:52:25,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:25,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350963383] [2022-03-17 18:52:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:25,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:25,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:52:25,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:25,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350963383] [2022-03-17 18:52:25,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350963383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:25,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:25,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:25,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609267814] [2022-03-17 18:52:25,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:25,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:25,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:25,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:25,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:25,613 INFO L87 Difference]: Start difference. First operand 292 states and 450 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:28,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:28,543 INFO L93 Difference]: Finished difference Result 401 states and 613 transitions. [2022-03-17 18:52:28,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:28,543 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-03-17 18:52:28,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:28,544 INFO L225 Difference]: With dead ends: 401 [2022-03-17 18:52:28,544 INFO L226 Difference]: Without dead ends: 401 [2022-03-17 18:52:28,545 INFO L911 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 [2022-03-17 18:52:28,545 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 98 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:28,545 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 575 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 18:52:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-03-17 18:52:28,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 326. [2022-03-17 18:52:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 321 states have (on average 1.557632398753894) internal successors, (500), 321 states have internal predecessors, (500), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:28,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 504 transitions. [2022-03-17 18:52:28,549 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 504 transitions. Word has length 120 [2022-03-17 18:52:28,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:28,550 INFO L478 AbstractCegarLoop]: Abstraction has 326 states and 504 transitions. [2022-03-17 18:52:28,550 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 504 transitions. [2022-03-17 18:52:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-17 18:52:28,551 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:28,551 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:28,551 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-17 18:52:28,551 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1943272498, now seen corresponding path program 1 times [2022-03-17 18:52:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:28,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527212802] [2022-03-17 18:52:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:28,646 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:52:28,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:28,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527212802] [2022-03-17 18:52:28,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527212802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:28,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:28,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:28,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695390786] [2022-03-17 18:52:28,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:28,647 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:28,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:28,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:28,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:28,647 INFO L87 Difference]: Start difference. First operand 326 states and 504 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:31,179 INFO L93 Difference]: Finished difference Result 498 states and 771 transitions. [2022-03-17 18:52:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:31,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-03-17 18:52:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:31,180 INFO L225 Difference]: With dead ends: 498 [2022-03-17 18:52:31,181 INFO L226 Difference]: Without dead ends: 498 [2022-03-17 18:52:31,181 INFO L911 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 [2022-03-17 18:52:31,181 INFO L912 BasicCegarLoop]: 164 mSDtfsCounter, 143 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:31,185 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 460 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-03-17 18:52:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-03-17 18:52:31,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 356. [2022-03-17 18:52:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.566951566951567) internal successors, (550), 351 states have internal predecessors, (550), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 554 transitions. [2022-03-17 18:52:31,190 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 554 transitions. Word has length 120 [2022-03-17 18:52:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:31,190 INFO L478 AbstractCegarLoop]: Abstraction has 356 states and 554 transitions. [2022-03-17 18:52:31,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:31,190 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 554 transitions. [2022-03-17 18:52:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-17 18:52:31,191 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:31,191 INFO L500 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, 1, 1, 1] [2022-03-17 18:52:31,191 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-17 18:52:31,191 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:31,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:31,192 INFO L85 PathProgramCache]: Analyzing trace with hash -415266249, now seen corresponding path program 1 times [2022-03-17 18:52:31,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:31,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571782831] [2022-03-17 18:52:31,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:31,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-03-17 18:52:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:31,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571782831] [2022-03-17 18:52:31,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571782831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:31,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:31,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:31,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541687256] [2022-03-17 18:52:31,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:31,275 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:31,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:31,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:31,276 INFO L87 Difference]: Start difference. First operand 356 states and 554 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:34,149 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 [] [2022-03-17 18:52:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:34,571 INFO L93 Difference]: Finished difference Result 442 states and 675 transitions. [2022-03-17 18:52:34,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:34,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-17 18:52:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:34,573 INFO L225 Difference]: With dead ends: 442 [2022-03-17 18:52:34,573 INFO L226 Difference]: Without dead ends: 442 [2022-03-17 18:52:34,573 INFO L911 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 [2022-03-17 18:52:34,574 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 165 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:34,574 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 418 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:52:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-03-17 18:52:34,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 356. [2022-03-17 18:52:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 351 states have (on average 1.5498575498575498) internal successors, (544), 351 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:34,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 548 transitions. [2022-03-17 18:52:34,579 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 548 transitions. Word has length 125 [2022-03-17 18:52:34,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:34,579 INFO L478 AbstractCegarLoop]: Abstraction has 356 states and 548 transitions. [2022-03-17 18:52:34,579 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 548 transitions. [2022-03-17 18:52:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-17 18:52:34,580 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:34,580 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:34,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-17 18:52:34,580 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 866150237, now seen corresponding path program 1 times [2022-03-17 18:52:34,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:34,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535628517] [2022-03-17 18:52:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:34,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:52:34,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:34,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535628517] [2022-03-17 18:52:34,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535628517] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:34,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:34,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:34,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254123061] [2022-03-17 18:52:34,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:34,664 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:34,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:34,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:34,665 INFO L87 Difference]: Start difference. First operand 356 states and 548 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:36,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:38,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:38,460 INFO L93 Difference]: Finished difference Result 455 states and 697 transitions. [2022-03-17 18:52:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:38,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-17 18:52:38,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:38,462 INFO L225 Difference]: With dead ends: 455 [2022-03-17 18:52:38,462 INFO L226 Difference]: Without dead ends: 455 [2022-03-17 18:52:38,462 INFO L911 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 [2022-03-17 18:52:38,462 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 91 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:38,462 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 553 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 18:52:38,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-03-17 18:52:38,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 395. [2022-03-17 18:52:38,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 390 states have (on average 1.5538461538461539) internal successors, (606), 390 states have internal predecessors, (606), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 610 transitions. [2022-03-17 18:52:38,467 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 610 transitions. Word has length 126 [2022-03-17 18:52:38,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:38,467 INFO L478 AbstractCegarLoop]: Abstraction has 395 states and 610 transitions. [2022-03-17 18:52:38,467 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 610 transitions. [2022-03-17 18:52:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-17 18:52:38,468 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:38,468 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:38,468 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-17 18:52:38,468 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1285667068, now seen corresponding path program 1 times [2022-03-17 18:52:38,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:38,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587675287] [2022-03-17 18:52:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:52:38,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:38,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587675287] [2022-03-17 18:52:38,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587675287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:38,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:38,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:38,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827642550] [2022-03-17 18:52:38,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:38,570 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:38,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:38,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:38,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:38,571 INFO L87 Difference]: Start difference. First operand 395 states and 610 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:40,853 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 [] [2022-03-17 18:52:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:41,937 INFO L93 Difference]: Finished difference Result 521 states and 800 transitions. [2022-03-17 18:52:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:41,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 126 [2022-03-17 18:52:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:41,940 INFO L225 Difference]: With dead ends: 521 [2022-03-17 18:52:41,940 INFO L226 Difference]: Without dead ends: 521 [2022-03-17 18:52:41,940 INFO L911 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 [2022-03-17 18:52:41,940 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 138 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:41,941 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 418 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:52:41,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-17 18:52:41,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 393. [2022-03-17 18:52:41,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5541237113402062) internal successors, (603), 388 states have internal predecessors, (603), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 607 transitions. [2022-03-17 18:52:41,946 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 607 transitions. Word has length 126 [2022-03-17 18:52:41,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:41,946 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 607 transitions. [2022-03-17 18:52:41,946 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:41,947 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 607 transitions. [2022-03-17 18:52:41,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-03-17 18:52:41,947 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:41,948 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:41,948 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-17 18:52:41,948 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:41,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:41,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1899710259, now seen corresponding path program 1 times [2022-03-17 18:52:41,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:41,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226261216] [2022-03-17 18:52:41,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:41,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:42,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:52:42,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:42,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226261216] [2022-03-17 18:52:42,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226261216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:42,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:42,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:42,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275852786] [2022-03-17 18:52:42,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:42,036 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:42,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:42,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:42,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:42,037 INFO L87 Difference]: Start difference. First operand 393 states and 607 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:43,863 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 [] [2022-03-17 18:52:44,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:44,966 INFO L93 Difference]: Finished difference Result 479 states and 732 transitions. [2022-03-17 18:52:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:44,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 127 [2022-03-17 18:52:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:44,967 INFO L225 Difference]: With dead ends: 479 [2022-03-17 18:52:44,967 INFO L226 Difference]: Without dead ends: 479 [2022-03-17 18:52:44,968 INFO L911 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 [2022-03-17 18:52:44,968 INFO L912 BasicCegarLoop]: 143 mSDtfsCounter, 137 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:44,968 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 418 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 18:52:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-03-17 18:52:44,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 393. [2022-03-17 18:52:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 388 states have (on average 1.5489690721649485) internal successors, (601), 388 states have internal predecessors, (601), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 605 transitions. [2022-03-17 18:52:44,996 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 605 transitions. Word has length 127 [2022-03-17 18:52:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:44,996 INFO L478 AbstractCegarLoop]: Abstraction has 393 states and 605 transitions. [2022-03-17 18:52:44,996 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:44,996 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 605 transitions. [2022-03-17 18:52:44,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 18:52:44,997 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:44,997 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:44,997 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-17 18:52:44,997 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:44,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:44,998 INFO L85 PathProgramCache]: Analyzing trace with hash 182948989, now seen corresponding path program 1 times [2022-03-17 18:52:44,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:44,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836392525] [2022-03-17 18:52:44,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:44,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-17 18:52:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:45,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836392525] [2022-03-17 18:52:45,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836392525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:45,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:45,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:45,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807023361] [2022-03-17 18:52:45,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:45,095 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:45,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:45,096 INFO L87 Difference]: Start difference. First operand 393 states and 605 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:48,769 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 [] [2022-03-17 18:52:49,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:49,734 INFO L93 Difference]: Finished difference Result 480 states and 733 transitions. [2022-03-17 18:52:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:49,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 18:52:49,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:49,736 INFO L225 Difference]: With dead ends: 480 [2022-03-17 18:52:49,736 INFO L226 Difference]: Without dead ends: 480 [2022-03-17 18:52:49,736 INFO L911 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 [2022-03-17 18:52:49,737 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 68 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:49,737 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 553 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 18:52:49,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-03-17 18:52:49,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 436. [2022-03-17 18:52:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 431 states have (on average 1.5475638051044083) internal successors, (667), 431 states have internal predecessors, (667), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 671 transitions. [2022-03-17 18:52:49,741 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 671 transitions. Word has length 134 [2022-03-17 18:52:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:49,742 INFO L478 AbstractCegarLoop]: Abstraction has 436 states and 671 transitions. [2022-03-17 18:52:49,742 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:49,742 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 671 transitions. [2022-03-17 18:52:49,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-17 18:52:49,743 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:49,743 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:49,743 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-17 18:52:49,743 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1351145244, now seen corresponding path program 1 times [2022-03-17 18:52:49,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:49,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753161692] [2022-03-17 18:52:49,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:49,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:49,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-03-17 18:52:49,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:49,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753161692] [2022-03-17 18:52:49,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753161692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:49,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:49,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:49,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689938452] [2022-03-17 18:52:49,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:49,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:49,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:49,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:49,827 INFO L87 Difference]: Start difference. First operand 436 states and 671 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:52,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:52,695 INFO L93 Difference]: Finished difference Result 482 states and 736 transitions. [2022-03-17 18:52:52,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:52,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 134 [2022-03-17 18:52:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:52,697 INFO L225 Difference]: With dead ends: 482 [2022-03-17 18:52:52,697 INFO L226 Difference]: Without dead ends: 482 [2022-03-17 18:52:52,697 INFO L911 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 [2022-03-17 18:52:52,697 INFO L912 BasicCegarLoop]: 268 mSDtfsCounter, 35 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:52,697 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 673 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-03-17 18:52:52,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-03-17 18:52:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 460. [2022-03-17 18:52:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 455 states have (on average 1.542857142857143) internal successors, (702), 455 states have internal predecessors, (702), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 706 transitions. [2022-03-17 18:52:52,702 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 706 transitions. Word has length 134 [2022-03-17 18:52:52,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:52,702 INFO L478 AbstractCegarLoop]: Abstraction has 460 states and 706 transitions. [2022-03-17 18:52:52,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 706 transitions. [2022-03-17 18:52:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-17 18:52:52,703 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:52,703 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:52,704 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-17 18:52:52,704 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:52,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2028100243, now seen corresponding path program 1 times [2022-03-17 18:52:52,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:52,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784193580] [2022-03-17 18:52:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:52,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:52,826 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:52:52,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:52,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784193580] [2022-03-17 18:52:52,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784193580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:52,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:52,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:52,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037998849] [2022-03-17 18:52:52,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:52,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:52,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:52,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:52,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:52,828 INFO L87 Difference]: Start difference. First operand 460 states and 706 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) [2022-03-17 18:52:55,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:52:56,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:52:56,676 INFO L93 Difference]: Finished difference Result 586 states and 890 transitions. [2022-03-17 18:52:56,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:52:56,676 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 [2022-03-17 18:52:56,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:52:56,678 INFO L225 Difference]: With dead ends: 586 [2022-03-17 18:52:56,678 INFO L226 Difference]: Without dead ends: 586 [2022-03-17 18:52:56,678 INFO L911 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 [2022-03-17 18:52:56,678 INFO L912 BasicCegarLoop]: 159 mSDtfsCounter, 144 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:52:56,678 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 450 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 18:52:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-03-17 18:52:56,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 490. [2022-03-17 18:52:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5340206185567011) internal successors, (744), 485 states have internal predecessors, (744), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:52:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 748 transitions. [2022-03-17 18:52:56,684 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 748 transitions. Word has length 147 [2022-03-17 18:52:56,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:52:56,684 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 748 transitions. [2022-03-17 18:52:56,684 INFO L479 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) [2022-03-17 18:52:56,684 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 748 transitions. [2022-03-17 18:52:56,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-17 18:52:56,685 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:52:56,685 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:52:56,685 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-17 18:52:56,685 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:52:56,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:52:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1894973686, now seen corresponding path program 1 times [2022-03-17 18:52:56,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:52:56,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899148017] [2022-03-17 18:52:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:52:56,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:52:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:52:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:52:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:52:56,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:52:56,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899148017] [2022-03-17 18:52:56,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899148017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:52:56,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:52:56,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:52:56,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52080973] [2022-03-17 18:52:56,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:52:56,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:52:56,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:52:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:52:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:52:56,785 INFO L87 Difference]: Start difference. First operand 490 states and 748 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) [2022-03-17 18:52:58,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:00,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:00,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:00,882 INFO L93 Difference]: Finished difference Result 532 states and 807 transitions. [2022-03-17 18:53:00,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:00,882 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 [2022-03-17 18:53:00,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:00,884 INFO L225 Difference]: With dead ends: 532 [2022-03-17 18:53:00,884 INFO L226 Difference]: Without dead ends: 532 [2022-03-17 18:53:00,884 INFO L911 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 [2022-03-17 18:53:00,884 INFO L912 BasicCegarLoop]: 209 mSDtfsCounter, 75 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:00,885 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 557 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-03-17 18:53:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-03-17 18:53:00,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 490. [2022-03-17 18:53:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.531958762886598) internal successors, (743), 485 states have internal predecessors, (743), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 747 transitions. [2022-03-17 18:53:00,890 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 747 transitions. Word has length 148 [2022-03-17 18:53:00,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:00,890 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 747 transitions. [2022-03-17 18:53:00,890 INFO L479 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) [2022-03-17 18:53:00,890 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 747 transitions. [2022-03-17 18:53:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-17 18:53:00,891 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:00,891 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:00,891 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-17 18:53:00,891 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:00,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:00,892 INFO L85 PathProgramCache]: Analyzing trace with hash 969837271, now seen corresponding path program 1 times [2022-03-17 18:53:00,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:00,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691670332] [2022-03-17 18:53:00,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:00,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-03-17 18:53:00,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:00,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691670332] [2022-03-17 18:53:00,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691670332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:00,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:00,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:00,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724393854] [2022-03-17 18:53:00,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:00,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:00,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:00,994 INFO L87 Difference]: Start difference. First operand 490 states and 747 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) [2022-03-17 18:53:03,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:05,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:05,795 INFO L93 Difference]: Finished difference Result 566 states and 852 transitions. [2022-03-17 18:53:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:05,796 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 150 [2022-03-17 18:53:05,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:05,797 INFO L225 Difference]: With dead ends: 566 [2022-03-17 18:53:05,797 INFO L226 Difference]: Without dead ends: 566 [2022-03-17 18:53:05,798 INFO L911 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 [2022-03-17 18:53:05,798 INFO L912 BasicCegarLoop]: 169 mSDtfsCounter, 152 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:05,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 470 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-03-17 18:53:05,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-03-17 18:53:05,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 490. [2022-03-17 18:53:05,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.51340206185567) internal successors, (734), 485 states have internal predecessors, (734), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:05,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 738 transitions. [2022-03-17 18:53:05,803 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 738 transitions. Word has length 150 [2022-03-17 18:53:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:05,803 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 738 transitions. [2022-03-17 18:53:05,804 INFO L479 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) [2022-03-17 18:53:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 738 transitions. [2022-03-17 18:53:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-03-17 18:53:05,804 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:05,805 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:05,805 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-17 18:53:05,805 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:05,805 INFO L85 PathProgramCache]: Analyzing trace with hash 123149661, now seen corresponding path program 1 times [2022-03-17 18:53:05,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:05,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859399430] [2022-03-17 18:53:05,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:05,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:05,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:05,896 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:53:05,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:05,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859399430] [2022-03-17 18:53:05,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859399430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:05,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:05,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:05,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990607641] [2022-03-17 18:53:05,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:05,897 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:05,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:05,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:05,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:05,898 INFO L87 Difference]: Start difference. First operand 490 states and 738 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) [2022-03-17 18:53:07,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:09,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:10,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:10,643 INFO L93 Difference]: Finished difference Result 522 states and 784 transitions. [2022-03-17 18:53:10,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:10,644 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 151 [2022-03-17 18:53:10,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:10,645 INFO L225 Difference]: With dead ends: 522 [2022-03-17 18:53:10,645 INFO L226 Difference]: Without dead ends: 522 [2022-03-17 18:53:10,646 INFO L911 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 [2022-03-17 18:53:10,646 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 69 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:10,646 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 571 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 501 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-17 18:53:10,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-03-17 18:53:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 490. [2022-03-17 18:53:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.511340206185567) internal successors, (733), 485 states have internal predecessors, (733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:10,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 737 transitions. [2022-03-17 18:53:10,651 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 737 transitions. Word has length 151 [2022-03-17 18:53:10,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:10,651 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 737 transitions. [2022-03-17 18:53:10,651 INFO L479 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) [2022-03-17 18:53:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 737 transitions. [2022-03-17 18:53:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-03-17 18:53:10,652 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:10,652 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:10,652 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-17 18:53:10,652 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:10,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:10,653 INFO L85 PathProgramCache]: Analyzing trace with hash -770014536, now seen corresponding path program 1 times [2022-03-17 18:53:10,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:10,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637761733] [2022-03-17 18:53:10,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:10,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:10,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:10,753 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-17 18:53:10,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637761733] [2022-03-17 18:53:10,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637761733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:10,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:10,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:10,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658194916] [2022-03-17 18:53:10,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:10,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:10,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:10,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:10,755 INFO L87 Difference]: Start difference. First operand 490 states and 737 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:12,771 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 [] [2022-03-17 18:53:13,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:13,193 INFO L93 Difference]: Finished difference Result 566 states and 844 transitions. [2022-03-17 18:53:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:13,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-03-17 18:53:13,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:13,195 INFO L225 Difference]: With dead ends: 566 [2022-03-17 18:53:13,195 INFO L226 Difference]: Without dead ends: 566 [2022-03-17 18:53:13,195 INFO L911 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 [2022-03-17 18:53:13,196 INFO L912 BasicCegarLoop]: 153 mSDtfsCounter, 137 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:13,196 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 438 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:53:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-03-17 18:53:13,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 490. [2022-03-17 18:53:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4969072164948454) internal successors, (726), 485 states have internal predecessors, (726), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 730 transitions. [2022-03-17 18:53:13,201 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 730 transitions. Word has length 152 [2022-03-17 18:53:13,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:13,201 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 730 transitions. [2022-03-17 18:53:13,201 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 730 transitions. [2022-03-17 18:53:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 18:53:13,202 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:13,202 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:13,203 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-17 18:53:13,203 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1527014597, now seen corresponding path program 1 times [2022-03-17 18:53:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:13,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362533026] [2022-03-17 18:53:13,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:13,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-03-17 18:53:13,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:13,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362533026] [2022-03-17 18:53:13,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362533026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:13,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:13,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904828725] [2022-03-17 18:53:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:13,306 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:13,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:13,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:13,307 INFO L87 Difference]: Start difference. First operand 490 states and 730 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) [2022-03-17 18:53:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:16,405 INFO L93 Difference]: Finished difference Result 566 states and 837 transitions. [2022-03-17 18:53:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:16,406 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 156 [2022-03-17 18:53:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:16,407 INFO L225 Difference]: With dead ends: 566 [2022-03-17 18:53:16,407 INFO L226 Difference]: Without dead ends: 566 [2022-03-17 18:53:16,408 INFO L911 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 [2022-03-17 18:53:16,408 INFO L912 BasicCegarLoop]: 160 mSDtfsCounter, 141 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:16,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 452 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-03-17 18:53:16,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-03-17 18:53:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 490. [2022-03-17 18:53:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.4824742268041238) internal successors, (719), 485 states have internal predecessors, (719), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 723 transitions. [2022-03-17 18:53:16,413 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 723 transitions. Word has length 156 [2022-03-17 18:53:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:16,413 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 723 transitions. [2022-03-17 18:53:16,413 INFO L479 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) [2022-03-17 18:53:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 723 transitions. [2022-03-17 18:53:16,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 18:53:16,414 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:16,414 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:16,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-17 18:53:16,414 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:16,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:16,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1781370010, now seen corresponding path program 1 times [2022-03-17 18:53:16,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:16,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273636851] [2022-03-17 18:53:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:16,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-17 18:53:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:16,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273636851] [2022-03-17 18:53:16,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273636851] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:16,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:16,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489422132] [2022-03-17 18:53:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:16,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:16,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:16,530 INFO L87 Difference]: Start difference. First operand 490 states and 723 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:17,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:17,876 INFO L93 Difference]: Finished difference Result 951 states and 1392 transitions. [2022-03-17 18:53:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:17,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 18:53:17,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:17,878 INFO L225 Difference]: With dead ends: 951 [2022-03-17 18:53:17,878 INFO L226 Difference]: Without dead ends: 951 [2022-03-17 18:53:17,879 INFO L911 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 [2022-03-17 18:53:17,879 INFO L912 BasicCegarLoop]: 266 mSDtfsCounter, 149 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:17,879 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 460 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-17 18:53:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2022-03-17 18:53:17,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 951. [2022-03-17 18:53:17,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 946 states have (on average 1.46723044397463) internal successors, (1388), 946 states have internal predecessors, (1388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1392 transitions. [2022-03-17 18:53:17,888 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1392 transitions. Word has length 156 [2022-03-17 18:53:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:17,888 INFO L478 AbstractCegarLoop]: Abstraction has 951 states and 1392 transitions. [2022-03-17 18:53:17,888 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 3 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1392 transitions. [2022-03-17 18:53:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 18:53:17,890 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:17,890 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:17,890 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-17 18:53:17,890 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:17,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1431788999, now seen corresponding path program 1 times [2022-03-17 18:53:17,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:17,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288773379] [2022-03-17 18:53:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:17,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-03-17 18:53:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:17,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288773379] [2022-03-17 18:53:17,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288773379] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:17,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:17,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:17,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995461173] [2022-03-17 18:53:17,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:17,966 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:17,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:17,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:17,966 INFO L87 Difference]: Start difference. First operand 951 states and 1392 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:19,036 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 [] [2022-03-17 18:53:20,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:20,040 INFO L93 Difference]: Finished difference Result 978 states and 1427 transitions. [2022-03-17 18:53:20,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:20,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 18:53:20,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:20,042 INFO L225 Difference]: With dead ends: 978 [2022-03-17 18:53:20,042 INFO L226 Difference]: Without dead ends: 978 [2022-03-17 18:53:20,043 INFO L911 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 [2022-03-17 18:53:20,043 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:20,043 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 441 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-03-17 18:53:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-03-17 18:53:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2022-03-17 18:53:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 973 states have (on average 1.462487153134635) internal successors, (1423), 973 states have internal predecessors, (1423), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:20,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1427 transitions. [2022-03-17 18:53:20,051 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1427 transitions. Word has length 156 [2022-03-17 18:53:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:20,052 INFO L478 AbstractCegarLoop]: Abstraction has 978 states and 1427 transitions. [2022-03-17 18:53:20,052 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1427 transitions. [2022-03-17 18:53:20,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-17 18:53:20,053 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:20,053 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:20,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-17 18:53:20,054 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:20,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:20,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1053274712, now seen corresponding path program 1 times [2022-03-17 18:53:20,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:20,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136078265] [2022-03-17 18:53:20,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:20,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:20,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-03-17 18:53:20,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:20,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136078265] [2022-03-17 18:53:20,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136078265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:20,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:20,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:20,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176870426] [2022-03-17 18:53:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:20,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:20,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:20,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:20,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:20,186 INFO L87 Difference]: Start difference. First operand 978 states and 1427 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:22,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:23,038 INFO L93 Difference]: Finished difference Result 980 states and 1429 transitions. [2022-03-17 18:53:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:23,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-17 18:53:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:23,041 INFO L225 Difference]: With dead ends: 980 [2022-03-17 18:53:23,041 INFO L226 Difference]: Without dead ends: 980 [2022-03-17 18:53:23,041 INFO L911 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 [2022-03-17 18:53:23,041 INFO L912 BasicCegarLoop]: 235 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:23,041 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 420 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 18:53:23,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-03-17 18:53:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2022-03-17 18:53:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 975 states have (on average 1.4615384615384615) internal successors, (1425), 975 states have internal predecessors, (1425), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1429 transitions. [2022-03-17 18:53:23,049 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1429 transitions. Word has length 156 [2022-03-17 18:53:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:23,050 INFO L478 AbstractCegarLoop]: Abstraction has 980 states and 1429 transitions. [2022-03-17 18:53:23,050 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1429 transitions. [2022-03-17 18:53:23,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-17 18:53:23,051 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:23,051 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:23,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-17 18:53:23,051 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:23,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:23,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2100723757, now seen corresponding path program 1 times [2022-03-17 18:53:23,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:23,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036203639] [2022-03-17 18:53:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:23,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-17 18:53:23,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:23,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036203639] [2022-03-17 18:53:23,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036203639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:23,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:23,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:23,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14567920] [2022-03-17 18:53:23,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:23,161 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:23,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:23,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:23,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:23,161 INFO L87 Difference]: Start difference. First operand 980 states and 1429 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:25,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:26,509 INFO L93 Difference]: Finished difference Result 1441 states and 2098 transitions. [2022-03-17 18:53:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:26,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-17 18:53:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:26,513 INFO L225 Difference]: With dead ends: 1441 [2022-03-17 18:53:26,513 INFO L226 Difference]: Without dead ends: 1441 [2022-03-17 18:53:26,513 INFO L911 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 [2022-03-17 18:53:26,513 INFO L912 BasicCegarLoop]: 407 mSDtfsCounter, 154 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:26,513 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 601 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-03-17 18:53:26,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2022-03-17 18:53:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1441. [2022-03-17 18:53:26,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1441 states, 1436 states have (on average 1.458217270194986) internal successors, (2094), 1436 states have internal predecessors, (2094), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2098 transitions. [2022-03-17 18:53:26,526 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2098 transitions. Word has length 158 [2022-03-17 18:53:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:26,526 INFO L478 AbstractCegarLoop]: Abstraction has 1441 states and 2098 transitions. [2022-03-17 18:53:26,526 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2098 transitions. [2022-03-17 18:53:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-03-17 18:53:26,529 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:26,529 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:26,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-17 18:53:26,529 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:26,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -48947842, now seen corresponding path program 1 times [2022-03-17 18:53:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984747773] [2022-03-17 18:53:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-03-17 18:53:26,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:26,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984747773] [2022-03-17 18:53:26,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984747773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:26,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:26,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:26,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079886949] [2022-03-17 18:53:26,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:26,675 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:26,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:26,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:26,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:26,675 INFO L87 Difference]: Start difference. First operand 1441 states and 2098 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:29,019 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 [] [2022-03-17 18:53:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:30,177 INFO L93 Difference]: Finished difference Result 1591 states and 2314 transitions. [2022-03-17 18:53:30,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:30,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 187 [2022-03-17 18:53:30,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:30,182 INFO L225 Difference]: With dead ends: 1591 [2022-03-17 18:53:30,182 INFO L226 Difference]: Without dead ends: 1591 [2022-03-17 18:53:30,182 INFO L911 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 [2022-03-17 18:53:30,182 INFO L912 BasicCegarLoop]: 268 mSDtfsCounter, 40 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:30,182 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 673 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 18:53:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2022-03-17 18:53:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1525. [2022-03-17 18:53:30,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1520 states have (on average 1.4585526315789474) internal successors, (2217), 1520 states have internal predecessors, (2217), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:30,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2221 transitions. [2022-03-17 18:53:30,197 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2221 transitions. Word has length 187 [2022-03-17 18:53:30,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:30,197 INFO L478 AbstractCegarLoop]: Abstraction has 1525 states and 2221 transitions. [2022-03-17 18:53:30,197 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:30,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2221 transitions. [2022-03-17 18:53:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-17 18:53:30,199 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:30,199 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:30,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-17 18:53:30,199 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:30,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash -346122628, now seen corresponding path program 1 times [2022-03-17 18:53:30,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:30,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311609673] [2022-03-17 18:53:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:30,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:30,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-17 18:53:30,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:30,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311609673] [2022-03-17 18:53:30,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311609673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:30,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:30,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873195245] [2022-03-17 18:53:30,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:30,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:30,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:30,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:30,333 INFO L87 Difference]: Start difference. First operand 1525 states and 2221 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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) [2022-03-17 18:53:31,895 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 [] [2022-03-17 18:53:34,377 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 [] [2022-03-17 18:53:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:34,644 INFO L93 Difference]: Finished difference Result 2015 states and 2938 transitions. [2022-03-17 18:53:34,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:34,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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 204 [2022-03-17 18:53:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:34,649 INFO L225 Difference]: With dead ends: 2015 [2022-03-17 18:53:34,649 INFO L226 Difference]: Without dead ends: 2015 [2022-03-17 18:53:34,649 INFO L911 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 [2022-03-17 18:53:34,649 INFO L912 BasicCegarLoop]: 208 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:34,649 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 393 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 305 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:53:34,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2022-03-17 18:53:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 2015. [2022-03-17 18:53:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4597014925373135) internal successors, (2934), 2010 states have internal predecessors, (2934), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:34,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2938 transitions. [2022-03-17 18:53:34,683 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2938 transitions. Word has length 204 [2022-03-17 18:53:34,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:34,683 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2938 transitions. [2022-03-17 18:53:34,683 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 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) [2022-03-17 18:53:34,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2938 transitions. [2022-03-17 18:53:34,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-17 18:53:34,686 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:34,686 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:34,686 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-17 18:53:34,686 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:34,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1524790942, now seen corresponding path program 1 times [2022-03-17 18:53:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:34,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832781590] [2022-03-17 18:53:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:34,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:34,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:34,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:34,806 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-03-17 18:53:34,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:34,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832781590] [2022-03-17 18:53:34,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832781590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:34,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:34,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:34,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124852927] [2022-03-17 18:53:34,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:34,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:34,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:34,808 INFO L87 Difference]: Start difference. First operand 2015 states and 2938 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) [2022-03-17 18:53:36,496 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 [] [2022-03-17 18:53:37,569 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 [] [2022-03-17 18:53:38,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:38,623 INFO L93 Difference]: Finished difference Result 2312 states and 3306 transitions. [2022-03-17 18:53:38,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:38,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 4 states have internal predecessors, (133), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-17 18:53:38,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:38,629 INFO L225 Difference]: With dead ends: 2312 [2022-03-17 18:53:38,629 INFO L226 Difference]: Without dead ends: 2312 [2022-03-17 18:53:38,629 INFO L911 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 [2022-03-17 18:53:38,629 INFO L912 BasicCegarLoop]: 177 mSDtfsCounter, 143 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:38,630 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 485 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-03-17 18:53:38,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-03-17 18:53:38,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2015. [2022-03-17 18:53:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4417910447761193) internal successors, (2898), 2010 states have internal predecessors, (2898), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2902 transitions. [2022-03-17 18:53:38,646 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2902 transitions. Word has length 241 [2022-03-17 18:53:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:38,647 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2902 transitions. [2022-03-17 18:53:38,647 INFO L479 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) [2022-03-17 18:53:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2902 transitions. [2022-03-17 18:53:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-17 18:53:38,649 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:38,649 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:38,650 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-17 18:53:38,650 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:38,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:38,650 INFO L85 PathProgramCache]: Analyzing trace with hash 340499711, now seen corresponding path program 1 times [2022-03-17 18:53:38,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:38,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748984067] [2022-03-17 18:53:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:38,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-03-17 18:53:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:38,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748984067] [2022-03-17 18:53:38,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748984067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:38,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:38,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094414987] [2022-03-17 18:53:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:38,809 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:38,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:38,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:38,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:38,810 INFO L87 Difference]: Start difference. First operand 2015 states and 2902 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:41,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:41,979 INFO L93 Difference]: Finished difference Result 2087 states and 3002 transitions. [2022-03-17 18:53:41,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:41,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-17 18:53:41,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:41,984 INFO L225 Difference]: With dead ends: 2087 [2022-03-17 18:53:41,984 INFO L226 Difference]: Without dead ends: 2087 [2022-03-17 18:53:41,984 INFO L911 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 [2022-03-17 18:53:41,985 INFO L912 BasicCegarLoop]: 264 mSDtfsCounter, 39 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:41,985 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 665 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:53:41,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2022-03-17 18:53:41,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2015. [2022-03-17 18:53:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4398009950248756) internal successors, (2894), 2010 states have internal predecessors, (2894), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:42,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2898 transitions. [2022-03-17 18:53:42,002 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2898 transitions. Word has length 242 [2022-03-17 18:53:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:42,002 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2898 transitions. [2022-03-17 18:53:42,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2898 transitions. [2022-03-17 18:53:42,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-17 18:53:42,005 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:42,005 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:42,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-17 18:53:42,005 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:42,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:42,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1060017824, now seen corresponding path program 1 times [2022-03-17 18:53:42,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:42,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228982076] [2022-03-17 18:53:42,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:42,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-03-17 18:53:42,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:42,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228982076] [2022-03-17 18:53:42,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228982076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:42,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:42,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:53:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473536387] [2022-03-17 18:53:42,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:42,120 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:53:42,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:42,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:53:42,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:53:42,121 INFO L87 Difference]: Start difference. First operand 2015 states and 2898 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:43,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:44,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:53:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:45,361 INFO L93 Difference]: Finished difference Result 2312 states and 3270 transitions. [2022-03-17 18:53:45,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:53:45,362 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 242 [2022-03-17 18:53:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:45,365 INFO L225 Difference]: With dead ends: 2312 [2022-03-17 18:53:45,365 INFO L226 Difference]: Without dead ends: 2312 [2022-03-17 18:53:45,365 INFO L911 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 [2022-03-17 18:53:45,366 INFO L912 BasicCegarLoop]: 153 mSDtfsCounter, 140 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:45,366 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 438 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:53:45,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-03-17 18:53:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2015. [2022-03-17 18:53:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4238805970149253) internal successors, (2862), 2010 states have internal predecessors, (2862), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2866 transitions. [2022-03-17 18:53:45,393 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2866 transitions. Word has length 242 [2022-03-17 18:53:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:45,393 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2866 transitions. [2022-03-17 18:53:45,393 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2866 transitions. [2022-03-17 18:53:45,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-17 18:53:45,396 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:45,396 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:45,396 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-17 18:53:45,396 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:45,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:45,397 INFO L85 PathProgramCache]: Analyzing trace with hash -492786643, now seen corresponding path program 1 times [2022-03-17 18:53:45,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:45,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710201714] [2022-03-17 18:53:45,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:45,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2022-03-17 18:53:45,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:45,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710201714] [2022-03-17 18:53:45,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710201714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:45,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:45,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292715897] [2022-03-17 18:53:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:45,500 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:45,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:45,501 INFO L87 Difference]: Start difference. First operand 2015 states and 2866 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:48,722 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 [] [2022-03-17 18:53:49,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:49,154 INFO L93 Difference]: Finished difference Result 2504 states and 3558 transitions. [2022-03-17 18:53:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:49,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-17 18:53:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:49,158 INFO L225 Difference]: With dead ends: 2504 [2022-03-17 18:53:49,158 INFO L226 Difference]: Without dead ends: 2504 [2022-03-17 18:53:49,158 INFO L911 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 [2022-03-17 18:53:49,159 INFO L912 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:49,159 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 499 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 18:53:49,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2022-03-17 18:53:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2504. [2022-03-17 18:53:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2504 states, 2499 states have (on average 1.4221688675470188) internal successors, (3554), 2499 states have internal predecessors, (3554), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 2504 states and 3558 transitions. [2022-03-17 18:53:49,182 INFO L78 Accepts]: Start accepts. Automaton has 2504 states and 3558 transitions. Word has length 244 [2022-03-17 18:53:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:49,182 INFO L478 AbstractCegarLoop]: Abstraction has 2504 states and 3558 transitions. [2022-03-17 18:53:49,182 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2504 states and 3558 transitions. [2022-03-17 18:53:49,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-03-17 18:53:49,186 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:49,186 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:49,186 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-17 18:53:49,186 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:49,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:49,186 INFO L85 PathProgramCache]: Analyzing trace with hash -361989880, now seen corresponding path program 1 times [2022-03-17 18:53:49,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:49,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168833200] [2022-03-17 18:53:49,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:49,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-17 18:53:49,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:49,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168833200] [2022-03-17 18:53:49,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168833200] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:49,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:49,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:49,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472883155] [2022-03-17 18:53:49,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:49,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:49,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:49,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:49,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:49,319 INFO L87 Difference]: Start difference. First operand 2504 states and 3558 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:50,341 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 [] [2022-03-17 18:53:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:51,378 INFO L93 Difference]: Finished difference Result 2994 states and 4258 transitions. [2022-03-17 18:53:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:51,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 250 [2022-03-17 18:53:51,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:51,383 INFO L225 Difference]: With dead ends: 2994 [2022-03-17 18:53:51,383 INFO L226 Difference]: Without dead ends: 2994 [2022-03-17 18:53:51,384 INFO L911 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 [2022-03-17 18:53:51,384 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:51,384 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 392 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-17 18:53:51,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2022-03-17 18:53:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 2994. [2022-03-17 18:53:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2994 states, 2989 states have (on average 1.4232184677149549) internal successors, (4254), 2989 states have internal predecessors, (4254), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 4258 transitions. [2022-03-17 18:53:51,409 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 4258 transitions. Word has length 250 [2022-03-17 18:53:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:51,409 INFO L478 AbstractCegarLoop]: Abstraction has 2994 states and 4258 transitions. [2022-03-17 18:53:51,410 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:51,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 4258 transitions. [2022-03-17 18:53:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-03-17 18:53:51,413 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:51,413 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:51,413 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-17 18:53:51,413 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:51,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:51,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1841842607, now seen corresponding path program 1 times [2022-03-17 18:53:51,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:51,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719611435] [2022-03-17 18:53:51,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:51,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:51,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:51,530 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-17 18:53:51,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:51,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719611435] [2022-03-17 18:53:51,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719611435] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:51,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:51,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:51,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504740346] [2022-03-17 18:53:51,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:51,532 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:51,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:51,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:51,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:51,533 INFO L87 Difference]: Start difference. First operand 2994 states and 4258 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:54,410 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 [] [2022-03-17 18:53:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:54,758 INFO L93 Difference]: Finished difference Result 3484 states and 4959 transitions. [2022-03-17 18:53:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:54,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 252 [2022-03-17 18:53:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:54,763 INFO L225 Difference]: With dead ends: 3484 [2022-03-17 18:53:54,763 INFO L226 Difference]: Without dead ends: 3484 [2022-03-17 18:53:54,763 INFO L911 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 [2022-03-17 18:53:54,764 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 166 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:54,764 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 391 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-03-17 18:53:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2022-03-17 18:53:54,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3484. [2022-03-17 18:53:54,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 3479 states have (on average 1.4242598447829835) internal successors, (4955), 3479 states have internal predecessors, (4955), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 4959 transitions. [2022-03-17 18:53:54,795 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 4959 transitions. Word has length 252 [2022-03-17 18:53:54,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:54,795 INFO L478 AbstractCegarLoop]: Abstraction has 3484 states and 4959 transitions. [2022-03-17 18:53:54,796 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 4959 transitions. [2022-03-17 18:53:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 18:53:54,800 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:54,801 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:54,801 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-17 18:53:54,801 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:54,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:54,801 INFO L85 PathProgramCache]: Analyzing trace with hash -32022594, now seen corresponding path program 1 times [2022-03-17 18:53:54,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:54,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73079693] [2022-03-17 18:53:54,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:54,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-17 18:53:54,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73079693] [2022-03-17 18:53:54,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73079693] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:54,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:54,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:54,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037855437] [2022-03-17 18:53:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:54,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:54,945 INFO L87 Difference]: Start difference. First operand 3484 states and 4959 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:57,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:53:57,222 INFO L93 Difference]: Finished difference Result 3966 states and 5643 transitions. [2022-03-17 18:53:57,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:53:57,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-03-17 18:53:57,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:53:57,228 INFO L225 Difference]: With dead ends: 3966 [2022-03-17 18:53:57,228 INFO L226 Difference]: Without dead ends: 3966 [2022-03-17 18:53:57,228 INFO L911 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 [2022-03-17 18:53:57,229 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 152 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:53:57,229 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 600 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-03-17 18:53:57,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2022-03-17 18:53:57,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3966. [2022-03-17 18:53:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3961 states have (on average 1.4236303963645545) internal successors, (5639), 3961 states have internal predecessors, (5639), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:57,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5643 transitions. [2022-03-17 18:53:57,274 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5643 transitions. Word has length 277 [2022-03-17 18:53:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:53:57,275 INFO L478 AbstractCegarLoop]: Abstraction has 3966 states and 5643 transitions. [2022-03-17 18:53:57,275 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5643 transitions. [2022-03-17 18:53:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-03-17 18:53:57,280 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:53:57,280 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:53:57,280 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-17 18:53:57,280 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:53:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:53:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash -480719233, now seen corresponding path program 1 times [2022-03-17 18:53:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:53:57,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088379805] [2022-03-17 18:53:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:53:57,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:53:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:57,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:53:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:53:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-17 18:53:57,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:53:57,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088379805] [2022-03-17 18:53:57,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088379805] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:53:57,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:53:57,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:53:57,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329616198] [2022-03-17 18:53:57,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:53:57,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:53:57,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:53:57,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:53:57,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:53:57,404 INFO L87 Difference]: Start difference. First operand 3966 states and 5643 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:53:59,672 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 [] [2022-03-17 18:54:01,247 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 [] [2022-03-17 18:54:01,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:01,682 INFO L93 Difference]: Finished difference Result 4423 states and 6290 transitions. [2022-03-17 18:54:01,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:01,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 277 [2022-03-17 18:54:01,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:01,688 INFO L225 Difference]: With dead ends: 4423 [2022-03-17 18:54:01,688 INFO L226 Difference]: Without dead ends: 4423 [2022-03-17 18:54:01,688 INFO L911 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 [2022-03-17 18:54:01,689 INFO L912 BasicCegarLoop]: 409 mSDtfsCounter, 161 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:01,689 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 603 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:54:01,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2022-03-17 18:54:01,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 4423. [2022-03-17 18:54:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 4418 states have (on average 1.4228157537347217) internal successors, (6286), 4418 states have internal predecessors, (6286), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:01,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 6290 transitions. [2022-03-17 18:54:01,739 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 6290 transitions. Word has length 277 [2022-03-17 18:54:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:01,739 INFO L478 AbstractCegarLoop]: Abstraction has 4423 states and 6290 transitions. [2022-03-17 18:54:01,739 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 6290 transitions. [2022-03-17 18:54:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-03-17 18:54:01,745 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:01,745 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:01,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-17 18:54:01,745 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:01,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1810243115, now seen corresponding path program 1 times [2022-03-17 18:54:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:01,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518613132] [2022-03-17 18:54:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:01,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:01,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2022-03-17 18:54:01,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:01,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518613132] [2022-03-17 18:54:01,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518613132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:01,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:01,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:01,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563239087] [2022-03-17 18:54:01,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:01,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:01,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:01,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:01,891 INFO L87 Difference]: Start difference. First operand 4423 states and 6290 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:03,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:03,677 INFO L93 Difference]: Finished difference Result 4913 states and 6994 transitions. [2022-03-17 18:54:03,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:03,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2022-03-17 18:54:03,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:03,694 INFO L225 Difference]: With dead ends: 4913 [2022-03-17 18:54:03,694 INFO L226 Difference]: Without dead ends: 4913 [2022-03-17 18:54:03,695 INFO L911 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 [2022-03-17 18:54:03,695 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:03,695 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 388 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-17 18:54:03,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4913 states. [2022-03-17 18:54:03,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4913 to 4913. [2022-03-17 18:54:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4913 states, 4908 states have (on average 1.424205378973105) internal successors, (6990), 4908 states have internal predecessors, (6990), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4913 states to 4913 states and 6994 transitions. [2022-03-17 18:54:03,778 INFO L78 Accepts]: Start accepts. Automaton has 4913 states and 6994 transitions. Word has length 359 [2022-03-17 18:54:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:03,779 INFO L478 AbstractCegarLoop]: Abstraction has 4913 states and 6994 transitions. [2022-03-17 18:54:03,779 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4913 states and 6994 transitions. [2022-03-17 18:54:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2022-03-17 18:54:03,785 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:03,786 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:03,786 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-17 18:54:03,786 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:03,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1399260897, now seen corresponding path program 1 times [2022-03-17 18:54:03,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:03,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324514038] [2022-03-17 18:54:03,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:03,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:03,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-17 18:54:03,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:03,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324514038] [2022-03-17 18:54:03,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324514038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:03,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:03,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986236526] [2022-03-17 18:54:03,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:03,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:03,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:03,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:03,949 INFO L87 Difference]: Start difference. First operand 4913 states and 6994 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 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) [2022-03-17 18:54:06,307 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:07,355 INFO L93 Difference]: Finished difference Result 5396 states and 7679 transitions. [2022-03-17 18:54:07,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:07,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 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 400 [2022-03-17 18:54:07,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:07,362 INFO L225 Difference]: With dead ends: 5396 [2022-03-17 18:54:07,362 INFO L226 Difference]: Without dead ends: 5396 [2022-03-17 18:54:07,363 INFO L911 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 [2022-03-17 18:54:07,363 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:07,363 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-03-17 18:54:07,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5396 states. [2022-03-17 18:54:07,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5396 to 5396. [2022-03-17 18:54:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5396 states, 5391 states have (on average 1.4236690780931183) internal successors, (7675), 5391 states have internal predecessors, (7675), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5396 states to 5396 states and 7679 transitions. [2022-03-17 18:54:07,428 INFO L78 Accepts]: Start accepts. Automaton has 5396 states and 7679 transitions. Word has length 400 [2022-03-17 18:54:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:07,428 INFO L478 AbstractCegarLoop]: Abstraction has 5396 states and 7679 transitions. [2022-03-17 18:54:07,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 3 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) [2022-03-17 18:54:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5396 states and 7679 transitions. [2022-03-17 18:54:07,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-03-17 18:54:07,435 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:07,435 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:07,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-17 18:54:07,435 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:07,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:07,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1076531027, now seen corresponding path program 1 times [2022-03-17 18:54:07,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:07,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83483027] [2022-03-17 18:54:07,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:07,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2022-03-17 18:54:07,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:07,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83483027] [2022-03-17 18:54:07,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83483027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:07,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:07,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:07,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827360274] [2022-03-17 18:54:07,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:07,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:07,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:07,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:07,596 INFO L87 Difference]: Start difference. First operand 5396 states and 7679 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:10,051 INFO L93 Difference]: Finished difference Result 5847 states and 8318 transitions. [2022-03-17 18:54:10,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:10,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 401 [2022-03-17 18:54:10,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:10,057 INFO L225 Difference]: With dead ends: 5847 [2022-03-17 18:54:10,058 INFO L226 Difference]: Without dead ends: 5847 [2022-03-17 18:54:10,058 INFO L911 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 [2022-03-17 18:54:10,058 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:10,058 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-17 18:54:10,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5847 states. [2022-03-17 18:54:10,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5847 to 5847. [2022-03-17 18:54:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 5842 states have (on average 1.423142759328997) internal successors, (8314), 5842 states have internal predecessors, (8314), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8318 transitions. [2022-03-17 18:54:10,108 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8318 transitions. Word has length 401 [2022-03-17 18:54:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:10,109 INFO L478 AbstractCegarLoop]: Abstraction has 5847 states and 8318 transitions. [2022-03-17 18:54:10,109 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:10,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8318 transitions. [2022-03-17 18:54:10,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-03-17 18:54:10,117 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:10,117 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:10,117 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-17 18:54:10,118 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:10,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1488073541, now seen corresponding path program 1 times [2022-03-17 18:54:10,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:10,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470189426] [2022-03-17 18:54:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:10,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:10,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2132 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2022-03-17 18:54:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:10,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470189426] [2022-03-17 18:54:10,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470189426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:10,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:10,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320232408] [2022-03-17 18:54:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:10,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:10,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:10,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:10,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:10,388 INFO L87 Difference]: Start difference. First operand 5847 states and 8318 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:12,969 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 [] [2022-03-17 18:54:13,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:13,253 INFO L93 Difference]: Finished difference Result 6337 states and 9025 transitions. [2022-03-17 18:54:13,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:13,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 484 [2022-03-17 18:54:13,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:13,260 INFO L225 Difference]: With dead ends: 6337 [2022-03-17 18:54:13,260 INFO L226 Difference]: Without dead ends: 6337 [2022-03-17 18:54:13,261 INFO L911 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 [2022-03-17 18:54:13,261 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 163 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:13,261 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 385 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-03-17 18:54:13,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6337 states. [2022-03-17 18:54:13,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6337 to 6337. [2022-03-17 18:54:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6337 states, 6332 states have (on average 1.4246683512318383) internal successors, (9021), 6332 states have internal predecessors, (9021), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:13,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6337 states to 6337 states and 9025 transitions. [2022-03-17 18:54:13,314 INFO L78 Accepts]: Start accepts. Automaton has 6337 states and 9025 transitions. Word has length 484 [2022-03-17 18:54:13,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:13,314 INFO L478 AbstractCegarLoop]: Abstraction has 6337 states and 9025 transitions. [2022-03-17 18:54:13,314 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 6337 states and 9025 transitions. [2022-03-17 18:54:13,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2022-03-17 18:54:13,324 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:13,324 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:13,324 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-17 18:54:13,324 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:13,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:13,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1803077245, now seen corresponding path program 1 times [2022-03-17 18:54:13,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:13,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247088310] [2022-03-17 18:54:13,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:13,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:13,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 2135 trivial. 0 not checked. [2022-03-17 18:54:13,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:13,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247088310] [2022-03-17 18:54:13,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247088310] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:13,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:13,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:13,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526045150] [2022-03-17 18:54:13,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:13,566 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:13,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:13,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:13,566 INFO L87 Difference]: Start difference. First operand 6337 states and 9025 transitions. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 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) [2022-03-17 18:54:14,744 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 [] [2022-03-17 18:54:16,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:17,171 INFO L93 Difference]: Finished difference Result 6821 states and 9711 transitions. [2022-03-17 18:54:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:17,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 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 526 [2022-03-17 18:54:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:17,178 INFO L225 Difference]: With dead ends: 6821 [2022-03-17 18:54:17,178 INFO L226 Difference]: Without dead ends: 6821 [2022-03-17 18:54:17,178 INFO L911 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 [2022-03-17 18:54:17,179 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:17,179 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-03-17 18:54:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-03-17 18:54:17,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 6821. [2022-03-17 18:54:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6821 states, 6816 states have (on average 1.4241490610328638) internal successors, (9707), 6816 states have internal predecessors, (9707), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6821 states to 6821 states and 9711 transitions. [2022-03-17 18:54:17,230 INFO L78 Accepts]: Start accepts. Automaton has 6821 states and 9711 transitions. Word has length 526 [2022-03-17 18:54:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:17,231 INFO L478 AbstractCegarLoop]: Abstraction has 6821 states and 9711 transitions. [2022-03-17 18:54:17,231 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 3 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) [2022-03-17 18:54:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6821 states and 9711 transitions. [2022-03-17 18:54:17,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2022-03-17 18:54:17,239 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:17,239 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:17,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-17 18:54:17,239 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:17,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2130819225, now seen corresponding path program 1 times [2022-03-17 18:54:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:17,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639748448] [2022-03-17 18:54:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 756 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-03-17 18:54:17,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639748448] [2022-03-17 18:54:17,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639748448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:17,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:17,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:17,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896243367] [2022-03-17 18:54:17,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:17,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:17,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:17,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:17,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:17,455 INFO L87 Difference]: Start difference. First operand 6821 states and 9711 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:19,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:19,633 INFO L93 Difference]: Finished difference Result 7273 states and 10351 transitions. [2022-03-17 18:54:19,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:19,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 527 [2022-03-17 18:54:19,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:19,641 INFO L225 Difference]: With dead ends: 7273 [2022-03-17 18:54:19,641 INFO L226 Difference]: Without dead ends: 7273 [2022-03-17 18:54:19,641 INFO L911 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 [2022-03-17 18:54:19,642 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:19,642 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:54:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7273 states. [2022-03-17 18:54:19,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7273 to 7273. [2022-03-17 18:54:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7273 states, 7268 states have (on average 1.4236378646119978) internal successors, (10347), 7268 states have internal predecessors, (10347), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:19,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7273 states to 7273 states and 10351 transitions. [2022-03-17 18:54:19,711 INFO L78 Accepts]: Start accepts. Automaton has 7273 states and 10351 transitions. Word has length 527 [2022-03-17 18:54:19,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:19,712 INFO L478 AbstractCegarLoop]: Abstraction has 7273 states and 10351 transitions. [2022-03-17 18:54:19,712 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:19,712 INFO L276 IsEmpty]: Start isEmpty. Operand 7273 states and 10351 transitions. [2022-03-17 18:54:19,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-03-17 18:54:19,722 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:19,723 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:19,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-17 18:54:19,723 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:19,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:19,723 INFO L85 PathProgramCache]: Analyzing trace with hash 863461547, now seen corresponding path program 1 times [2022-03-17 18:54:19,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:19,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738848018] [2022-03-17 18:54:19,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:19,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3438 backedges. 910 proven. 0 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2022-03-17 18:54:19,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:19,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738848018] [2022-03-17 18:54:19,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738848018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:19,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:19,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:19,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633513012] [2022-03-17 18:54:19,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:19,993 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:19,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:19,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:19,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:19,993 INFO L87 Difference]: Start difference. First operand 7273 states and 10351 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:21,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:21,449 INFO L93 Difference]: Finished difference Result 7763 states and 11061 transitions. [2022-03-17 18:54:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:21,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 612 [2022-03-17 18:54:21,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:21,456 INFO L225 Difference]: With dead ends: 7763 [2022-03-17 18:54:21,457 INFO L226 Difference]: Without dead ends: 7763 [2022-03-17 18:54:21,457 INFO L911 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 [2022-03-17 18:54:21,457 INFO L912 BasicCegarLoop]: 197 mSDtfsCounter, 162 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:21,457 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [162 Valid, 382 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-17 18:54:21,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7763 states. [2022-03-17 18:54:21,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7763 to 7763. [2022-03-17 18:54:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7763 states, 7758 states have (on average 1.425238463521526) internal successors, (11057), 7758 states have internal predecessors, (11057), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7763 states to 7763 states and 11061 transitions. [2022-03-17 18:54:21,517 INFO L78 Accepts]: Start accepts. Automaton has 7763 states and 11061 transitions. Word has length 612 [2022-03-17 18:54:21,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:21,517 INFO L478 AbstractCegarLoop]: Abstraction has 7763 states and 11061 transitions. [2022-03-17 18:54:21,517 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 3 states have internal predecessors, (211), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:21,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7763 states and 11061 transitions. [2022-03-17 18:54:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2022-03-17 18:54:21,526 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:21,527 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:21,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-17 18:54:21,527 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:21,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1012543035, now seen corresponding path program 1 times [2022-03-17 18:54:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:21,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109138312] [2022-03-17 18:54:21,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 502 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-03-17 18:54:21,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:21,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109138312] [2022-03-17 18:54:21,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109138312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:21,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:21,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:21,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668772913] [2022-03-17 18:54:21,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:21,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:21,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:21,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:21,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:21,824 INFO L87 Difference]: Start difference. First operand 7763 states and 11061 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:24,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:24,496 INFO L93 Difference]: Finished difference Result 8248 states and 11748 transitions. [2022-03-17 18:54:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 655 [2022-03-17 18:54:24,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:24,504 INFO L225 Difference]: With dead ends: 8248 [2022-03-17 18:54:24,504 INFO L226 Difference]: Without dead ends: 8248 [2022-03-17 18:54:24,504 INFO L911 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 [2022-03-17 18:54:24,504 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:24,505 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-17 18:54:24,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8248 states. [2022-03-17 18:54:24,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8248 to 8248. [2022-03-17 18:54:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 8243 states have (on average 1.4247240082494237) internal successors, (11744), 8243 states have internal predecessors, (11744), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 11748 transitions. [2022-03-17 18:54:24,604 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 11748 transitions. Word has length 655 [2022-03-17 18:54:24,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:24,605 INFO L478 AbstractCegarLoop]: Abstraction has 8248 states and 11748 transitions. [2022-03-17 18:54:24,605 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 3 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:24,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 11748 transitions. [2022-03-17 18:54:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2022-03-17 18:54:24,628 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:24,628 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:24,628 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-17 18:54:24,629 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:24,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:24,629 INFO L85 PathProgramCache]: Analyzing trace with hash -814672608, now seen corresponding path program 1 times [2022-03-17 18:54:24,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:24,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786404035] [2022-03-17 18:54:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:24,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3946 backedges. 978 proven. 0 refuted. 0 times theorem prover too weak. 2968 trivial. 0 not checked. [2022-03-17 18:54:24,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:24,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786404035] [2022-03-17 18:54:24,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786404035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:24,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:24,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:24,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608927834] [2022-03-17 18:54:24,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:24,948 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:24,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:24,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:24,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:24,948 INFO L87 Difference]: Start difference. First operand 8248 states and 11748 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:26,225 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 [] [2022-03-17 18:54:28,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:28,455 INFO L93 Difference]: Finished difference Result 8701 states and 12389 transitions. [2022-03-17 18:54:28,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:28,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 656 [2022-03-17 18:54:28,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:28,463 INFO L225 Difference]: With dead ends: 8701 [2022-03-17 18:54:28,464 INFO L226 Difference]: Without dead ends: 8701 [2022-03-17 18:54:28,464 INFO L911 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 [2022-03-17 18:54:28,464 INFO L912 BasicCegarLoop]: 406 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:28,464 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 600 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-17 18:54:28,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8701 states. [2022-03-17 18:54:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8701 to 8701. [2022-03-17 18:54:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8701 states, 8696 states have (on average 1.424218031278749) internal successors, (12385), 8696 states have internal predecessors, (12385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:28,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8701 states to 8701 states and 12389 transitions. [2022-03-17 18:54:28,576 INFO L78 Accepts]: Start accepts. Automaton has 8701 states and 12389 transitions. Word has length 656 [2022-03-17 18:54:28,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:28,576 INFO L478 AbstractCegarLoop]: Abstraction has 8701 states and 12389 transitions. [2022-03-17 18:54:28,576 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 3 states have internal predecessors, (213), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 8701 states and 12389 transitions. [2022-03-17 18:54:28,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2022-03-17 18:54:28,588 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:28,588 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 18, 18, 17, 17, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:28,588 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-17 18:54:28,588 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:28,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1052583979, now seen corresponding path program 1 times [2022-03-17 18:54:28,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:28,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685226901] [2022-03-17 18:54:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:28,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5081 backedges. 1135 proven. 0 refuted. 0 times theorem prover too weak. 3946 trivial. 0 not checked. [2022-03-17 18:54:28,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:28,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685226901] [2022-03-17 18:54:28,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685226901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:28,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:28,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:54:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774774616] [2022-03-17 18:54:28,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:28,904 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:54:28,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:54:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:54:28,905 INFO L87 Difference]: Start difference. First operand 8701 states and 12389 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:29,932 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 [] [2022-03-17 18:54:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:31,131 INFO L93 Difference]: Finished difference Result 9191 states and 13102 transitions. [2022-03-17 18:54:31,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:54:31,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 743 [2022-03-17 18:54:31,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:31,139 INFO L225 Difference]: With dead ends: 9191 [2022-03-17 18:54:31,139 INFO L226 Difference]: Without dead ends: 9191 [2022-03-17 18:54:31,140 INFO L911 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 [2022-03-17 18:54:31,140 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:31,140 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 379 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-17 18:54:31,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9191 states. [2022-03-17 18:54:31,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9191 to 9191. [2022-03-17 18:54:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9191 states, 9186 states have (on average 1.425865447419987) internal successors, (13098), 9186 states have internal predecessors, (13098), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9191 states to 9191 states and 13102 transitions. [2022-03-17 18:54:31,225 INFO L78 Accepts]: Start accepts. Automaton has 9191 states and 13102 transitions. Word has length 743 [2022-03-17 18:54:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:31,226 INFO L478 AbstractCegarLoop]: Abstraction has 9191 states and 13102 transitions. [2022-03-17 18:54:31,226 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9191 states and 13102 transitions. [2022-03-17 18:54:31,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-03-17 18:54:31,237 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:31,238 INFO L500 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:31,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-17 18:54:31,238 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:31,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:31,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1084698277, now seen corresponding path program 1 times [2022-03-17 18:54:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:31,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197839453] [2022-03-17 18:54:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:31,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:31,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2297 proven. 243 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-03-17 18:54:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:31,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197839453] [2022-03-17 18:54:31,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197839453] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:54:31,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008207243] [2022-03-17 18:54:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:31,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:54:31,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:54:31,730 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) [2022-03-17 18:54:31,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-17 18:54:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:33,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-17 18:54:33,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:54:33,124 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:54:33,125 INFO L390 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 [2022-03-17 18:54:33,203 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 18:54:33,204 INFO L390 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 [2022-03-17 18:54:33,512 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:54:33,580 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:54:33,580 INFO L390 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 [2022-03-17 18:54:33,693 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:54:33,693 INFO L390 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 [2022-03-17 18:54:33,947 INFO L390 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 [2022-03-17 18:54:33,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 18:54:33,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 18:54:34,009 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-17 18:54:34,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-03-17 18:54:34,072 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 18:54:34,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 36 [2022-03-17 18:54:34,269 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:54:34,269 INFO L390 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 [2022-03-17 18:54:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2342 proven. 586 refuted. 0 times theorem prover too weak. 2774 trivial. 0 not checked. [2022-03-17 18:54:34,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:54:34,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 53 [2022-03-17 18:54:34,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 41 [2022-03-17 18:54:36,034 INFO L390 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 190 treesize of output 172 [2022-03-17 18:54:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 2152 proven. 0 refuted. 0 times theorem prover too weak. 3550 trivial. 0 not checked. [2022-03-17 18:54:36,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008207243] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:54:36,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:54:36,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 13] total 21 [2022-03-17 18:54:36,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176041245] [2022-03-17 18:54:36,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:36,548 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-17 18:54:36,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-17 18:54:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:54:36,549 INFO L87 Difference]: Start difference. First operand 9191 states and 13102 transitions. Second operand has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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) [2022-03-17 18:54:38,380 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 [] [2022-03-17 18:54:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:42,162 INFO L93 Difference]: Finished difference Result 16404 states and 23427 transitions. [2022-03-17 18:54:42,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-17 18:54:42,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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 787 [2022-03-17 18:54:42,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:42,181 INFO L225 Difference]: With dead ends: 16404 [2022-03-17 18:54:42,181 INFO L226 Difference]: Without dead ends: 16404 [2022-03-17 18:54:42,182 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1590 GetRequests, 1567 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600 [2022-03-17 18:54:42,182 INFO L912 BasicCegarLoop]: 271 mSDtfsCounter, 471 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 177 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:42,182 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1059 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 526 Invalid, 0 Unknown, 177 Unchecked, 2.4s Time] [2022-03-17 18:54:42,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16404 states. [2022-03-17 18:54:42,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16404 to 13942. [2022-03-17 18:54:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13942 states, 13937 states have (on average 1.4404821697639376) internal successors, (20076), 13937 states have internal predecessors, (20076), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:42,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13942 states to 13942 states and 20080 transitions. [2022-03-17 18:54:42,321 INFO L78 Accepts]: Start accepts. Automaton has 13942 states and 20080 transitions. Word has length 787 [2022-03-17 18:54:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:42,322 INFO L478 AbstractCegarLoop]: Abstraction has 13942 states and 20080 transitions. [2022-03-17 18:54:42,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.42857142857143) internal successors, (234), 7 states have internal predecessors, (234), 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) [2022-03-17 18:54:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 13942 states and 20080 transitions. [2022-03-17 18:54:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2022-03-17 18:54:42,339 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:42,339 INFO L500 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:42,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-17 18:54:42,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-03-17 18:54:42,541 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:42,541 INFO L85 PathProgramCache]: Analyzing trace with hash -871520774, now seen corresponding path program 1 times [2022-03-17 18:54:42,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:42,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329274719] [2022-03-17 18:54:42,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:42,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:42,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5702 backedges. 3223 proven. 0 refuted. 0 times theorem prover too weak. 2479 trivial. 0 not checked. [2022-03-17 18:54:42,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:42,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329274719] [2022-03-17 18:54:42,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329274719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:42,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:42,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:42,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429264671] [2022-03-17 18:54:42,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:42,920 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:42,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:42,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:42,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:42,920 INFO L87 Difference]: Start difference. First operand 13942 states and 20080 transitions. Second operand has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:45,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:47,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:48,399 INFO L93 Difference]: Finished difference Result 16268 states and 23328 transitions. [2022-03-17 18:54:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:48,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 787 [2022-03-17 18:54:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:48,417 INFO L225 Difference]: With dead ends: 16268 [2022-03-17 18:54:48,417 INFO L226 Difference]: Without dead ends: 16268 [2022-03-17 18:54:48,417 INFO L911 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 [2022-03-17 18:54:48,417 INFO L912 BasicCegarLoop]: 290 mSDtfsCounter, 63 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:48,418 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 717 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 595 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-17 18:54:48,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2022-03-17 18:54:48,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 15189. [2022-03-17 18:54:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15189 states, 15184 states have (on average 1.4401343519494205) internal successors, (21867), 15184 states have internal predecessors, (21867), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:48,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15189 states to 15189 states and 21871 transitions. [2022-03-17 18:54:48,586 INFO L78 Accepts]: Start accepts. Automaton has 15189 states and 21871 transitions. Word has length 787 [2022-03-17 18:54:48,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:48,586 INFO L478 AbstractCegarLoop]: Abstraction has 15189 states and 21871 transitions. [2022-03-17 18:54:48,586 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.2) internal successors, (226), 4 states have internal predecessors, (226), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:48,586 INFO L276 IsEmpty]: Start isEmpty. Operand 15189 states and 21871 transitions. [2022-03-17 18:54:48,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2022-03-17 18:54:48,604 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:48,604 INFO L500 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:48,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-17 18:54:48,605 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:48,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:48,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1714969504, now seen corresponding path program 1 times [2022-03-17 18:54:48,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:48,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232238953] [2022-03-17 18:54:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:48,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:49,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:49,115 INFO L134 CoverageAnalysis]: Checked inductivity of 5717 backedges. 3231 proven. 0 refuted. 0 times theorem prover too weak. 2486 trivial. 0 not checked. [2022-03-17 18:54:49,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:49,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232238953] [2022-03-17 18:54:49,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232238953] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:49,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:49,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:49,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042894695] [2022-03-17 18:54:49,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:49,117 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:49,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:49,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:49,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:49,117 INFO L87 Difference]: Start difference. First operand 15189 states and 21871 transitions. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:52,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:53,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:54:53,756 INFO L93 Difference]: Finished difference Result 16249 states and 23290 transitions. [2022-03-17 18:54:53,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:54:53,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 790 [2022-03-17 18:54:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:54:53,771 INFO L225 Difference]: With dead ends: 16249 [2022-03-17 18:54:53,772 INFO L226 Difference]: Without dead ends: 16249 [2022-03-17 18:54:53,772 INFO L911 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 [2022-03-17 18:54:53,772 INFO L912 BasicCegarLoop]: 289 mSDtfsCounter, 61 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:54:53,772 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 715 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 18:54:53,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16249 states. [2022-03-17 18:54:53,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16249 to 15208. [2022-03-17 18:54:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15208 states, 15203 states have (on average 1.439584292573834) internal successors, (21886), 15203 states have internal predecessors, (21886), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:53,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15208 states to 15208 states and 21890 transitions. [2022-03-17 18:54:53,934 INFO L78 Accepts]: Start accepts. Automaton has 15208 states and 21890 transitions. Word has length 790 [2022-03-17 18:54:53,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:54:53,934 INFO L478 AbstractCegarLoop]: Abstraction has 15208 states and 21890 transitions. [2022-03-17 18:54:53,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:53,934 INFO L276 IsEmpty]: Start isEmpty. Operand 15208 states and 21890 transitions. [2022-03-17 18:54:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2022-03-17 18:54:53,951 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:54:53,952 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 19, 18, 18, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:54:53,952 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-17 18:54:53,952 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:54:53,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:54:53,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1257899377, now seen corresponding path program 1 times [2022-03-17 18:54:53,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:54:53,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846311178] [2022-03-17 18:54:53,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:54:53,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:54:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:54:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:54:54,350 INFO L134 CoverageAnalysis]: Checked inductivity of 6896 backedges. 3778 proven. 0 refuted. 0 times theorem prover too weak. 3118 trivial. 0 not checked. [2022-03-17 18:54:54,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:54:54,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846311178] [2022-03-17 18:54:54,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846311178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:54:54,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:54:54,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:54:54,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182038067] [2022-03-17 18:54:54,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:54:54,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:54:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:54:54,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:54:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:54:54,352 INFO L87 Difference]: Start difference. First operand 15208 states and 21890 transitions. Second operand has 5 states, 5 states have (on average 42.8) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:54:55,681 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 [] [2022-03-17 18:54:57,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:54:59,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:00,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:00,032 INFO L93 Difference]: Finished difference Result 16121 states and 23082 transitions. [2022-03-17 18:55:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 856 [2022-03-17 18:55:00,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:00,047 INFO L225 Difference]: With dead ends: 16121 [2022-03-17 18:55:00,047 INFO L226 Difference]: Without dead ends: 16121 [2022-03-17 18:55:00,047 INFO L911 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 [2022-03-17 18:55:00,047 INFO L912 BasicCegarLoop]: 285 mSDtfsCounter, 75 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:00,048 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 707 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 575 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-17 18:55:00,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16121 states. [2022-03-17 18:55:00,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16121 to 15208. [2022-03-17 18:55:00,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15208 states, 15203 states have (on average 1.4374794448464119) internal successors, (21854), 15203 states have internal predecessors, (21854), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:00,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15208 states to 15208 states and 21858 transitions. [2022-03-17 18:55:00,162 INFO L78 Accepts]: Start accepts. Automaton has 15208 states and 21858 transitions. Word has length 856 [2022-03-17 18:55:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:00,162 INFO L478 AbstractCegarLoop]: Abstraction has 15208 states and 21858 transitions. [2022-03-17 18:55:00,162 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.8) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 15208 states and 21858 transitions. [2022-03-17 18:55:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 863 [2022-03-17 18:55:00,179 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:00,179 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:00,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-17 18:55:00,180 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:00,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash -722265603, now seen corresponding path program 1 times [2022-03-17 18:55:00,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:00,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641326904] [2022-03-17 18:55:00,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:00,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:00,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7160 backedges. 4049 proven. 34 refuted. 0 times theorem prover too weak. 3077 trivial. 0 not checked. [2022-03-17 18:55:00,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:00,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641326904] [2022-03-17 18:55:00,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641326904] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:55:00,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68859145] [2022-03-17 18:55:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:00,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:55:00,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:55:00,503 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) [2022-03-17 18:55:00,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-17 18:55:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:01,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 3664 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-17 18:55:01,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:55:02,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 18:55:02,337 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-03-17 18:55:02,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-03-17 18:55:02,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-03-17 18:55:02,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2022-03-17 18:55:02,463 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-17 18:55:02,469 INFO L390 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 0 case distinctions, treesize of input 18 treesize of output 7 [2022-03-17 18:55:02,471 INFO L390 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 7 treesize of output 3 [2022-03-17 18:55:02,539 INFO L390 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 [2022-03-17 18:55:02,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7160 backedges. 4033 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-03-17 18:55:02,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-17 18:55:02,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68859145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:02,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-17 18:55:02,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-03-17 18:55:02,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34861708] [2022-03-17 18:55:02,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:02,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:55:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:02,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:55:02,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-17 18:55:02,954 INFO L87 Difference]: Start difference. First operand 15208 states and 21858 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2022-03-17 18:55:03,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:03,417 INFO L93 Difference]: Finished difference Result 16131 states and 23113 transitions. [2022-03-17 18:55:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:55:03,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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 862 [2022-03-17 18:55:03,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:03,434 INFO L225 Difference]: With dead ends: 16131 [2022-03-17 18:55:03,434 INFO L226 Difference]: Without dead ends: 16131 [2022-03-17 18:55:03,434 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 863 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:55:03,434 INFO L912 BasicCegarLoop]: 293 mSDtfsCounter, 64 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:03,434 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 721 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-17 18:55:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-03-17 18:55:03,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15417. [2022-03-17 18:55:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15417 states, 15412 states have (on average 1.4377108746431353) internal successors, (22158), 15412 states have internal predecessors, (22158), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15417 states to 15417 states and 22162 transitions. [2022-03-17 18:55:03,563 INFO L78 Accepts]: Start accepts. Automaton has 15417 states and 22162 transitions. Word has length 862 [2022-03-17 18:55:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:03,563 INFO L478 AbstractCegarLoop]: Abstraction has 15417 states and 22162 transitions. [2022-03-17 18:55:03,563 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 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) [2022-03-17 18:55:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 15417 states and 22162 transitions. [2022-03-17 18:55:03,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 866 [2022-03-17 18:55:03,581 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:03,582 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:03,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-17 18:55:03,782 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-03-17 18:55:03,782 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:03,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1600111913, now seen corresponding path program 1 times [2022-03-17 18:55:03,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:03,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122903596] [2022-03-17 18:55:03,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:03,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:04,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:04,113 INFO L134 CoverageAnalysis]: Checked inductivity of 7175 backedges. 3954 proven. 0 refuted. 0 times theorem prover too weak. 3221 trivial. 0 not checked. [2022-03-17 18:55:04,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:04,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122903596] [2022-03-17 18:55:04,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122903596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:04,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:04,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:04,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203577495] [2022-03-17 18:55:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:04,114 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:04,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:04,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:04,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:04,114 INFO L87 Difference]: Start difference. First operand 15417 states and 22162 transitions. Second operand has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:06,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:08,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:10,792 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 [] [2022-03-17 18:55:11,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:11,221 INFO L93 Difference]: Finished difference Result 15570 states and 22350 transitions. [2022-03-17 18:55:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:11,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 865 [2022-03-17 18:55:11,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:11,272 INFO L225 Difference]: With dead ends: 15570 [2022-03-17 18:55:11,273 INFO L226 Difference]: Without dead ends: 15570 [2022-03-17 18:55:11,273 INFO L911 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 [2022-03-17 18:55:11,274 INFO L912 BasicCegarLoop]: 262 mSDtfsCounter, 34 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:11,274 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 662 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-03-17 18:55:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15570 states. [2022-03-17 18:55:11,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15570 to 15208. [2022-03-17 18:55:11,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15208 states, 15203 states have (on average 1.4362296915082549) internal successors, (21835), 15203 states have internal predecessors, (21835), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:11,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15208 states to 15208 states and 21839 transitions. [2022-03-17 18:55:11,410 INFO L78 Accepts]: Start accepts. Automaton has 15208 states and 21839 transitions. Word has length 865 [2022-03-17 18:55:11,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:11,411 INFO L478 AbstractCegarLoop]: Abstraction has 15208 states and 21839 transitions. [2022-03-17 18:55:11,411 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 15208 states and 21839 transitions. [2022-03-17 18:55:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2022-03-17 18:55:11,430 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:11,430 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:11,430 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-17 18:55:11,430 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash -11866621, now seen corresponding path program 1 times [2022-03-17 18:55:11,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:11,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981586305] [2022-03-17 18:55:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:11,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 7307 backedges. 4120 proven. 28 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2022-03-17 18:55:11,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:11,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981586305] [2022-03-17 18:55:11,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981586305] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:55:11,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162513833] [2022-03-17 18:55:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:11,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:55:11,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:55:11,870 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) [2022-03-17 18:55:11,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-17 18:55:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:13,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 3718 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-17 18:55:13,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:55:13,372 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:55:13,372 INFO L390 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 [2022-03-17 18:55:13,410 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:55:13,410 INFO L390 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 [2022-03-17 18:55:13,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:55:13,836 INFO L390 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 36 treesize of output 24 [2022-03-17 18:55:13,857 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-03-17 18:55:13,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 88 [2022-03-17 18:55:13,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:13,866 INFO L390 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 0 case distinctions, treesize of input 15 treesize of output 19 [2022-03-17 18:55:13,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:13,874 INFO L390 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 0 case distinctions, treesize of input 21 treesize of output 25 [2022-03-17 18:55:13,950 INFO L390 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 0 case distinctions, treesize of input 33 treesize of output 21 [2022-03-17 18:55:13,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:13,955 INFO L390 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 21 treesize of output 13 [2022-03-17 18:55:14,051 INFO L390 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 [2022-03-17 18:55:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7307 backedges. 4115 proven. 220 refuted. 0 times theorem prover too weak. 2972 trivial. 0 not checked. [2022-03-17 18:55:14,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:55:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 7307 backedges. 4110 proven. 0 refuted. 0 times theorem prover too weak. 3197 trivial. 0 not checked. [2022-03-17 18:55:15,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162513833] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:55:15,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:55:15,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-03-17 18:55:15,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462813009] [2022-03-17 18:55:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:15,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:55:15,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:15,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:55:15,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-17 18:55:15,336 INFO L87 Difference]: Start difference. First operand 15208 states and 21839 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2022-03-17 18:55:15,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:15,939 INFO L93 Difference]: Finished difference Result 17362 states and 24760 transitions. [2022-03-17 18:55:15,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:55:15,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 871 [2022-03-17 18:55:15,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:15,957 INFO L225 Difference]: With dead ends: 17362 [2022-03-17 18:55:15,957 INFO L226 Difference]: Without dead ends: 17362 [2022-03-17 18:55:15,958 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1752 GetRequests, 1742 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-17 18:55:15,958 INFO L912 BasicCegarLoop]: 218 mSDtfsCounter, 123 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:15,958 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 565 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-17 18:55:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17362 states. [2022-03-17 18:55:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17362 to 15227. [2022-03-17 18:55:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15227 states, 15222 states have (on average 1.4356851924845617) internal successors, (21854), 15222 states have internal predecessors, (21854), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15227 states to 15227 states and 21858 transitions. [2022-03-17 18:55:16,102 INFO L78 Accepts]: Start accepts. Automaton has 15227 states and 21858 transitions. Word has length 871 [2022-03-17 18:55:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:16,102 INFO L478 AbstractCegarLoop]: Abstraction has 15227 states and 21858 transitions. [2022-03-17 18:55:16,103 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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) [2022-03-17 18:55:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 15227 states and 21858 transitions. [2022-03-17 18:55:16,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-03-17 18:55:16,121 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:16,122 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:16,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-17 18:55:16,325 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:55:16,325 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:16,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:16,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1874680809, now seen corresponding path program 1 times [2022-03-17 18:55:16,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:16,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753508745] [2022-03-17 18:55:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:16,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:17,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 4612 proven. 642 refuted. 0 times theorem prover too weak. 2104 trivial. 0 not checked. [2022-03-17 18:55:17,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:17,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753508745] [2022-03-17 18:55:17,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753508745] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:55:17,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524482709] [2022-03-17 18:55:17,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:17,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:55:17,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:55:17,197 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) [2022-03-17 18:55:17,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-17 18:55:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:18,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3646 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-17 18:55:18,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:55:18,778 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:55:18,779 INFO L390 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 [2022-03-17 18:55:19,093 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:55:19,093 INFO L390 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 [2022-03-17 18:55:19,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:19,183 INFO L390 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 23 treesize of output 22 [2022-03-17 18:55:19,188 INFO L390 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 [2022-03-17 18:55:19,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-03-17 18:55:19,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-03-17 18:55:19,242 INFO L356 Elim1Store]: treesize reduction 60, result has 39.4 percent of original size [2022-03-17 18:55:19,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 55 [2022-03-17 18:55:19,393 INFO L356 Elim1Store]: treesize reduction 80, result has 35.0 percent of original size [2022-03-17 18:55:19,394 INFO L390 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 52 treesize of output 72 [2022-03-17 18:55:19,470 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:55:19,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2022-03-17 18:55:19,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:55:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 4527 proven. 72 refuted. 0 times theorem prover too weak. 2759 trivial. 0 not checked. [2022-03-17 18:55:19,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:55:20,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-03-17 18:55:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 4340 proven. 0 refuted. 0 times theorem prover too weak. 3018 trivial. 0 not checked. [2022-03-17 18:55:20,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524482709] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-17 18:55:20,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-17 18:55:20,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 9] total 20 [2022-03-17 18:55:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797405561] [2022-03-17 18:55:20,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:20,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:20,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:20,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:20,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-03-17 18:55:20,968 INFO L87 Difference]: Start difference. First operand 15227 states and 21858 transitions. Second operand has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2022-03-17 18:55:22,409 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 [] [2022-03-17 18:55:22,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:22,753 INFO L93 Difference]: Finished difference Result 22311 states and 31998 transitions. [2022-03-17 18:55:22,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:22,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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 874 [2022-03-17 18:55:22,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:22,775 INFO L225 Difference]: With dead ends: 22311 [2022-03-17 18:55:22,775 INFO L226 Difference]: Without dead ends: 22311 [2022-03-17 18:55:22,775 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 1769 GetRequests, 1750 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-03-17 18:55:22,776 INFO L912 BasicCegarLoop]: 348 mSDtfsCounter, 168 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:22,776 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 969 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 285 Invalid, 0 Unknown, 108 Unchecked, 1.7s Time] [2022-03-17 18:55:22,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22311 states. [2022-03-17 18:55:22,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22311 to 16322. [2022-03-17 18:55:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16322 states, 16317 states have (on average 1.435129006557578) internal successors, (23417), 16317 states have internal predecessors, (23417), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16322 states to 16322 states and 23421 transitions. [2022-03-17 18:55:22,979 INFO L78 Accepts]: Start accepts. Automaton has 16322 states and 23421 transitions. Word has length 874 [2022-03-17 18:55:22,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:22,979 INFO L478 AbstractCegarLoop]: Abstraction has 16322 states and 23421 transitions. [2022-03-17 18:55:22,979 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2022-03-17 18:55:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16322 states and 23421 transitions. [2022-03-17 18:55:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-03-17 18:55:22,998 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:22,998 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:23,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-17 18:55:23,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:55:23,204 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:23,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1939810281, now seen corresponding path program 1 times [2022-03-17 18:55:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:23,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998578551] [2022-03-17 18:55:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:23,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7322 backedges. 4047 proven. 0 refuted. 0 times theorem prover too weak. 3275 trivial. 0 not checked. [2022-03-17 18:55:23,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:23,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998578551] [2022-03-17 18:55:23,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998578551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:55:23,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:55:23,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:55:23,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783923917] [2022-03-17 18:55:23,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:55:23,512 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:55:23,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:23,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:55:23,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:55:23,514 INFO L87 Difference]: Start difference. First operand 16322 states and 23421 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:24,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:26,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:29,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:29,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:55:29,779 INFO L93 Difference]: Finished difference Result 18182 states and 26034 transitions. [2022-03-17 18:55:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:55:29,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 874 [2022-03-17 18:55:29,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:55:29,798 INFO L225 Difference]: With dead ends: 18182 [2022-03-17 18:55:29,798 INFO L226 Difference]: Without dead ends: 18182 [2022-03-17 18:55:29,798 INFO L911 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 [2022-03-17 18:55:29,798 INFO L912 BasicCegarLoop]: 258 mSDtfsCounter, 36 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:55:29,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 654 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 519 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-17 18:55:29,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18182 states. [2022-03-17 18:55:29,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18182 to 17410. [2022-03-17 18:55:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17410 states, 17405 states have (on average 1.4332663027865555) internal successors, (24946), 17405 states have internal predecessors, (24946), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:30,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17410 states to 17410 states and 24950 transitions. [2022-03-17 18:55:30,024 INFO L78 Accepts]: Start accepts. Automaton has 17410 states and 24950 transitions. Word has length 874 [2022-03-17 18:55:30,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:55:30,025 INFO L478 AbstractCegarLoop]: Abstraction has 17410 states and 24950 transitions. [2022-03-17 18:55:30,025 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:30,025 INFO L276 IsEmpty]: Start isEmpty. Operand 17410 states and 24950 transitions. [2022-03-17 18:55:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2022-03-17 18:55:30,045 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:55:30,046 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:55:30,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-17 18:55:30,046 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:55:30,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:55:30,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1788450326, now seen corresponding path program 1 times [2022-03-17 18:55:30,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:55:30,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446186964] [2022-03-17 18:55:30,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:30,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:55:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:55:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 1959 proven. 4949 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2022-03-17 18:55:33,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:55:33,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446186964] [2022-03-17 18:55:33,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446186964] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-17 18:55:33,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351624772] [2022-03-17 18:55:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:55:33,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:55:33,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-17 18:55:33,805 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) [2022-03-17 18:55:33,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-17 18:55:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:55:35,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 3649 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-17 18:55:35,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-17 18:55:35,489 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:55:35,490 INFO L390 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 [2022-03-17 18:55:35,599 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-03-17 18:55:35,599 INFO L390 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 [2022-03-17 18:55:35,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-03-17 18:55:36,259 INFO L390 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 [2022-03-17 18:55:36,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,315 INFO L390 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 [2022-03-17 18:55:36,335 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-03-17 18:55:36,336 INFO L390 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 [2022-03-17 18:55:36,343 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-17 18:55:36,343 INFO L390 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 [2022-03-17 18:55:36,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,888 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-03-17 18:55:36,888 INFO L390 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 [2022-03-17 18:55:36,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,898 INFO L390 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 [2022-03-17 18:55:36,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,902 INFO L390 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 [2022-03-17 18:55:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,959 INFO L390 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 [2022-03-17 18:55:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,965 INFO L390 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 [2022-03-17 18:55:36,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:36,984 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-03-17 18:55:36,984 INFO L390 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 [2022-03-17 18:55:37,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:37,629 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-03-17 18:55:37,630 INFO L390 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 [2022-03-17 18:55:37,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:37,663 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-03-17 18:55:37,664 INFO L390 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 [2022-03-17 18:55:37,719 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-03-17 18:55:37,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-03-17 18:55:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,473 INFO L390 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 379 treesize of output 313 [2022-03-17 18:55:39,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:39,482 INFO L390 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 379 treesize of output 295 [2022-03-17 18:55:39,528 INFO L356 Elim1Store]: treesize reduction 231, result has 26.4 percent of original size [2022-03-17 18:55:39,529 INFO L390 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 379 treesize of output 392 [2022-03-17 18:55:46,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,014 INFO L390 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 374 treesize of output 286 [2022-03-17 18:55:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,020 INFO L390 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 374 treesize of output 304 [2022-03-17 18:55:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,046 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-03-17 18:55:46,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 383 treesize of output 374 [2022-03-17 18:55:46,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,341 INFO L390 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 214 treesize of output 148 [2022-03-17 18:55:46,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-17 18:55:46,344 INFO L390 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 148 treesize of output 88 [2022-03-17 18:55:46,389 INFO L356 Elim1Store]: treesize reduction 151, result has 29.4 percent of original size [2022-03-17 18:55:46,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 116 treesize of output 144 [2022-03-17 18:55:46,506 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-03-17 18:55:46,506 INFO L390 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 [2022-03-17 18:55:46,620 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-17 18:55:46,620 INFO L390 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 [2022-03-17 18:55:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 2322 proven. 666 refuted. 0 times theorem prover too weak. 4370 trivial. 0 not checked. [2022-03-17 18:55:46,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-17 18:55:49,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 18:55:49,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 18:55:49,330 INFO L390 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 262 treesize of output 202 [2022-03-17 18:55:49,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 18:55:49,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-17 18:55:49,335 INFO L390 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 214 treesize of output 154 [2022-03-17 18:55:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 7358 backedges. 2453 proven. 141 refuted. 0 times theorem prover too weak. 4764 trivial. 0 not checked. [2022-03-17 18:55:52,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351624772] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-17 18:55:52,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-17 18:55:52,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 20, 13] total 53 [2022-03-17 18:55:52,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009665083] [2022-03-17 18:55:52,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-17 18:55:52,689 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-17 18:55:52,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:55:52,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-17 18:55:52,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=2432, Unknown=0, NotChecked=0, Total=2756 [2022-03-17 18:55:52,690 INFO L87 Difference]: Start difference. First operand 17410 states and 24950 transitions. Second operand has 53 states, 53 states have (on average 18.11320754716981) internal successors, (960), 52 states have internal predecessors, (960), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:55:55,161 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 [] [2022-03-17 18:55:57,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:55:58,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:01,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:04,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:07,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:56:08,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:33,144 INFO L93 Difference]: Finished difference Result 433290 states and 613159 transitions. [2022-03-17 18:58:33,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 690 states. [2022-03-17 18:58:33,145 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 18.11320754716981) internal successors, (960), 52 states have internal predecessors, (960), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 874 [2022-03-17 18:58:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:33,935 INFO L225 Difference]: With dead ends: 433290 [2022-03-17 18:58:33,936 INFO L226 Difference]: Without dead ends: 433290 [2022-03-17 18:58:33,959 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 2927 GetRequests, 2177 SyntacticMatches, 25 SemanticMatches, 725 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239390 ImplicationChecksByTransitivity, 71.6s TimeCoverageRelationStatistics Valid=41836, Invalid=485966, Unknown=0, NotChecked=0, Total=527802 [2022-03-17 18:58:33,960 INFO L912 BasicCegarLoop]: 2940 mSDtfsCounter, 10708 mSDsluCounter, 61148 mSDsCounter, 0 mSdLazyCounter, 62516 mSolverCounterSat, 2077 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10708 SdHoareTripleChecker+Valid, 64088 SdHoareTripleChecker+Invalid, 79176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2077 IncrementalHoareTripleChecker+Valid, 62516 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 14581 IncrementalHoareTripleChecker+Unchecked, 85.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:33,960 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [10708 Valid, 64088 Invalid, 79176 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2077 Valid, 62516 Invalid, 2 Unknown, 14581 Unchecked, 85.5s Time] [2022-03-17 18:58:34,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433290 states. [2022-03-17 18:58:38,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433290 to 295244. [2022-03-17 18:58:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295244 states, 295239 states have (on average 1.4345530231439614) internal successors, (423536), 295239 states have internal predecessors, (423536), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295244 states to 295244 states and 423540 transitions. [2022-03-17 18:58:39,007 INFO L78 Accepts]: Start accepts. Automaton has 295244 states and 423540 transitions. Word has length 874 [2022-03-17 18:58:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:39,007 INFO L478 AbstractCegarLoop]: Abstraction has 295244 states and 423540 transitions. [2022-03-17 18:58:39,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 18.11320754716981) internal successors, (960), 52 states have internal predecessors, (960), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:39,008 INFO L276 IsEmpty]: Start isEmpty. Operand 295244 states and 423540 transitions. [2022-03-17 18:58:39,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 884 [2022-03-17 18:58:39,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:39,410 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:39,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-17 18:58:39,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-17 18:58:39,610 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:39,611 INFO L85 PathProgramCache]: Analyzing trace with hash -224695535, now seen corresponding path program 1 times [2022-03-17 18:58:39,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:39,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191130739] [2022-03-17 18:58:39,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:39,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:40,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:40,067 INFO L134 CoverageAnalysis]: Checked inductivity of 7211 backedges. 3977 proven. 0 refuted. 0 times theorem prover too weak. 3234 trivial. 0 not checked. [2022-03-17 18:58:40,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:40,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191130739] [2022-03-17 18:58:40,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191130739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:40,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:40,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:58:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389174881] [2022-03-17 18:58:40,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:40,068 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:58:40,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:58:40,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:58:40,068 INFO L87 Difference]: Start difference. First operand 295244 states and 423540 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:41,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:42,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:45,293 INFO L93 Difference]: Finished difference Result 306698 states and 436886 transitions. [2022-03-17 18:58:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:58:45,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 883 [2022-03-17 18:58:45,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:45,798 INFO L225 Difference]: With dead ends: 306698 [2022-03-17 18:58:45,798 INFO L226 Difference]: Without dead ends: 306698 [2022-03-17 18:58:45,798 INFO L911 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 [2022-03-17 18:58:45,798 INFO L912 BasicCegarLoop]: 280 mSDtfsCounter, 60 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:45,798 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 697 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-17 18:58:45,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306698 states. [2022-03-17 18:58:48,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306698 to 295244. [2022-03-17 18:58:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295244 states, 295239 states have (on average 1.4324157716290868) internal successors, (422905), 295239 states have internal predecessors, (422905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295244 states to 295244 states and 422909 transitions. [2022-03-17 18:58:49,486 INFO L78 Accepts]: Start accepts. Automaton has 295244 states and 422909 transitions. Word has length 883 [2022-03-17 18:58:49,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:49,486 INFO L478 AbstractCegarLoop]: Abstraction has 295244 states and 422909 transitions. [2022-03-17 18:58:49,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 4 states have internal predecessors, (222), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:49,486 INFO L276 IsEmpty]: Start isEmpty. Operand 295244 states and 422909 transitions. [2022-03-17 18:58:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2022-03-17 18:58:49,801 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:58:49,802 INFO L500 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 23, 23, 22, 22, 21, 21, 20, 20, 20, 19, 15, 14, 14, 13, 13, 12, 12, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:58:49,802 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-17 18:58:49,802 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:58:49,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:58:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash -148075894, now seen corresponding path program 1 times [2022-03-17 18:58:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:58:49,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202452247] [2022-03-17 18:58:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:58:49,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:58:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:50,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:58:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:58:50,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7818 backedges. 1745 proven. 0 refuted. 0 times theorem prover too weak. 6073 trivial. 0 not checked. [2022-03-17 18:58:50,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:58:50,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202452247] [2022-03-17 18:58:50,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202452247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:58:50,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:58:50,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-17 18:58:50,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967598312] [2022-03-17 18:58:50,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:58:50,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-17 18:58:50,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:58:50,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-17 18:58:50,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-17 18:58:50,329 INFO L87 Difference]: Start difference. First operand 295244 states and 422909 transitions. Second operand has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:52,315 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:54,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:58:55,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:58:55,475 INFO L93 Difference]: Finished difference Result 312384 states and 447944 transitions. [2022-03-17 18:58:55,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-17 18:58:55,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 885 [2022-03-17 18:58:55,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:58:55,849 INFO L225 Difference]: With dead ends: 312384 [2022-03-17 18:58:55,849 INFO L226 Difference]: Without dead ends: 312384 [2022-03-17 18:58:55,850 INFO L911 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 [2022-03-17 18:58:55,850 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-17 18:58:55,850 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 378 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-17 18:58:56,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312384 states. [2022-03-17 18:58:58,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312384 to 312384. [2022-03-17 18:58:59,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312384 states, 312379 states have (on average 1.433963230562874) internal successors, (447940), 312379 states have internal predecessors, (447940), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312384 states to 312384 states and 447944 transitions. [2022-03-17 18:58:59,808 INFO L78 Accepts]: Start accepts. Automaton has 312384 states and 447944 transitions. Word has length 885 [2022-03-17 18:58:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:58:59,809 INFO L478 AbstractCegarLoop]: Abstraction has 312384 states and 447944 transitions. [2022-03-17 18:58:59,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.5) internal successors, (182), 3 states have internal predecessors, (182), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:58:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 312384 states and 447944 transitions. [2022-03-17 18:59:00,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2022-03-17 18:59:00,377 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:00,377 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 19, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:00,377 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-17 18:59:00,377 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:00,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:00,378 INFO L85 PathProgramCache]: Analyzing trace with hash 696657277, now seen corresponding path program 1 times [2022-03-17 18:59:00,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:00,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593273865] [2022-03-17 18:59:00,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:00,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:00,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 7442 backedges. 4001 proven. 0 refuted. 0 times theorem prover too weak. 3441 trivial. 0 not checked. [2022-03-17 18:59:00,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:00,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593273865] [2022-03-17 18:59:00,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593273865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:00,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:00,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678463391] [2022-03-17 18:59:00,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:00,661 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:00,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:00,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:00,661 INFO L87 Difference]: Start difference. First operand 312384 states and 447944 transitions. Second operand has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:03,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:06,156 INFO L93 Difference]: Finished difference Result 332041 states and 473757 transitions. [2022-03-17 18:59:06,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 886 [2022-03-17 18:59:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:06,542 INFO L225 Difference]: With dead ends: 332041 [2022-03-17 18:59:06,542 INFO L226 Difference]: Without dead ends: 332041 [2022-03-17 18:59:06,542 INFO L911 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 [2022-03-17 18:59:06,543 INFO L912 BasicCegarLoop]: 250 mSDtfsCounter, 14 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:06,543 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 637 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-03-17 18:59:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332041 states. [2022-03-17 18:59:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332041 to 327987. [2022-03-17 18:59:09,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327987 states, 327982 states have (on average 1.4291759913653799) internal successors, (468744), 327982 states have internal predecessors, (468744), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327987 states to 327987 states and 468748 transitions. [2022-03-17 18:59:10,639 INFO L78 Accepts]: Start accepts. Automaton has 327987 states and 468748 transitions. Word has length 886 [2022-03-17 18:59:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:10,640 INFO L478 AbstractCegarLoop]: Abstraction has 327987 states and 468748 transitions. [2022-03-17 18:59:10,640 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.4) internal successors, (212), 4 states have internal predecessors, (212), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:10,640 INFO L276 IsEmpty]: Start isEmpty. Operand 327987 states and 468748 transitions. [2022-03-17 18:59:11,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2022-03-17 18:59:11,254 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:11,255 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 19, 18, 18, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:11,255 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-17 18:59:11,255 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:11,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:11,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2043113308, now seen corresponding path program 1 times [2022-03-17 18:59:11,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:11,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016084768] [2022-03-17 18:59:11,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:11,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 7532 backedges. 4199 proven. 0 refuted. 0 times theorem prover too weak. 3333 trivial. 0 not checked. [2022-03-17 18:59:11,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:11,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016084768] [2022-03-17 18:59:11,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016084768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:11,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:11,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:11,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77731925] [2022-03-17 18:59:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:11,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:11,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:11,755 INFO L87 Difference]: Start difference. First operand 327987 states and 468748 transitions. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:13,324 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 [] [2022-03-17 18:59:15,346 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 [] [2022-03-17 18:59:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:18,303 INFO L93 Difference]: Finished difference Result 345625 states and 491052 transitions. [2022-03-17 18:59:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:18,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 889 [2022-03-17 18:59:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:18,700 INFO L225 Difference]: With dead ends: 345625 [2022-03-17 18:59:18,700 INFO L226 Difference]: Without dead ends: 345625 [2022-03-17 18:59:18,700 INFO L911 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 [2022-03-17 18:59:18,700 INFO L912 BasicCegarLoop]: 276 mSDtfsCounter, 52 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:18,700 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 690 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 554 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-17 18:59:19,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345625 states. [2022-03-17 18:59:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345625 to 327987. [2022-03-17 18:59:22,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327987 states, 327982 states have (on average 1.4266514625802635) internal successors, (467916), 327982 states have internal predecessors, (467916), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:23,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327987 states to 327987 states and 467920 transitions. [2022-03-17 18:59:23,004 INFO L78 Accepts]: Start accepts. Automaton has 327987 states and 467920 transitions. Word has length 889 [2022-03-17 18:59:23,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-17 18:59:23,005 INFO L478 AbstractCegarLoop]: Abstraction has 327987 states and 467920 transitions. [2022-03-17 18:59:23,005 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 4 states have internal predecessors, (227), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:23,005 INFO L276 IsEmpty]: Start isEmpty. Operand 327987 states and 467920 transitions. [2022-03-17 18:59:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2022-03-17 18:59:23,316 INFO L492 BasicCegarLoop]: Found error trace [2022-03-17 18:59:23,316 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 19, 19, 19, 15, 15, 14, 14, 13, 13, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-17 18:59:23,316 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-17 18:59:23,316 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-17 18:59:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-17 18:59:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash 694499413, now seen corresponding path program 1 times [2022-03-17 18:59:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-17 18:59:23,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442820754] [2022-03-17 18:59:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-17 18:59:23,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-17 18:59:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:23,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-17 18:59:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-17 18:59:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7454 backedges. 4145 proven. 0 refuted. 0 times theorem prover too weak. 3309 trivial. 0 not checked. [2022-03-17 18:59:23,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-17 18:59:23,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442820754] [2022-03-17 18:59:23,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442820754] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-17 18:59:23,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-17 18:59:23,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-17 18:59:23,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173811422] [2022-03-17 18:59:23,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-17 18:59:23,893 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-17 18:59:23,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-17 18:59:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-17 18:59:23,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-17 18:59:23,894 INFO L87 Difference]: Start difference. First operand 327987 states and 467920 transitions. Second operand has 5 states, 5 states have (on average 45.8) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-17 18:59:25,205 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 [] [2022-03-17 18:59:26,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:27,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-17 18:59:29,643 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 [] [2022-03-17 18:59:31,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-17 18:59:31,104 INFO L93 Difference]: Finished difference Result 374160 states and 531959 transitions. [2022-03-17 18:59:31,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-17 18:59:31,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 45.8) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 892 [2022-03-17 18:59:31,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-17 18:59:31,685 INFO L225 Difference]: With dead ends: 374160 [2022-03-17 18:59:31,685 INFO L226 Difference]: Without dead ends: 374160 [2022-03-17 18:59:31,685 INFO L911 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 [2022-03-17 18:59:31,686 INFO L912 BasicCegarLoop]: 275 mSDtfsCounter, 47 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-17 18:59:31,686 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 687 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 545 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time]